Book Review: Garbage Land: On the Secret Trail of Trash – by
Elizabeth Royte (Little, Brown, and Co., 2005)
This is an entertaining and engaging journalist’s narrative account
of the fate of trash in the U.S. Her goal is to find out where her trash,
recyclables, and sewage goes and how it all is handled. It is quite an
informative and sincere account. She calls up and visits often reluctant
managers of landfills, transfer stations, sanitation workers, recycling
facilities, and tries to extract information from them. Along the way she
provides how trash works, its history, decomposition, and many other facets of
our waste. Since she lives in New York City, we get much perspective from this
very large city. Many of the people she visits, some quite colorful, are New
Yorkers and I couldn’t help attributing to them strong NYC accents and “up
yours” attitudes – OK I am stereotyping but some of the dialogue makes it hard
not to do!
The book begins with her joining some Sierra Club members in
paddling around the Gowanus canal in Brooklyn, a waterway highly polluted with
sewage and industrial waste. But she explored the canal with a diver and
dredger. The canal requires pumps to supply oxygen not unlike a fish aquarium
does, or else there will be dead zones. This has helped some species of fish,
shellfish, and other animals to survive in and near the polluted, oxygen
depleted waterway. Royte also analyzes her own trash habits, measuring her
trash output by weight and sorting it. She eventually begins composting as
well. At the time, recycling was limited in NYC. Glass and plastic was
temporarily not recycled. I assume it is now as in most places.
She notes that in centuries past kitchen trash was typically
left out for scavenging animals and farm animals and burnables were burned.
This is before plastic. Other stuff was repurposed or bartered. While many of
us still do these things, the waste stream is no doubt much heavier these days.
Apparently, waste in the first 4 decades of the 20th century was
composed of 60% wood and coal ash! Since those sources of heat are now far less
common so is their waste. The advent of refrigeration actually reduced food
waste. However, concurrently, package waste went up. In the 1800’s trash
accumulated in thick layers on the streets of populated cities and it included
dead animals – in 1880, 15,000 dead horses were reported in Manhattan. While
there were sporadic cleanup efforts it wasn’t until 1895 that trash removal
service became a thing in NYC. There were three designations then and there:
fuel ash, dry rubbish, and “putrescible” waste. Ashes went to an ash dump where
ashes were piled high. Dry trash was picked clean of useful stuff and actually
used to build up land and fill waterways and wetlands, creating tens of
thousands of acres of waterfront real estate. Airports were built on such sites
and still have problems with ground settling. Rat and other vermin problems led
to more intolerance of trash. Incineration was in vogue in the 40’s. The toxic,
stinky black smoke from these neighborhood incinerators made the air hazy and
blocked visibility and for all these reasons went back out of fashion. New
“sanitary” landfills came about with the Fresh Kills landfill in 1948 in Staten
Island which stayed in operation until 2001. The first one was built in Fresno,
California in 1937.
Her first visit was to 6AM roll call at the Department of
Sanitation. She then got to meet up and help out her local sanitation workers
(trash men), or “san men” as they (including women) are called, Sullivan and
Murphy. She notes their skill, concentration, strength, and quickness in
getting trash in the truck, crushing it, and moving on. They noted that trash
and differences in trash tells a lot about the people – what they buy, what
they read, and what they eat. People also throw away useful things (as we
discovered living in cities) so the scavenging can be good as well. After the
truck was filled it was brought to be weighed and dumped at the transfer
station. Knowing how much trash can be
put in a packer truck and how efficiently it is packed comes with experience.
The quality of the compressed mass when dumped is referred to as the “turd
factor.”
On a tangent she notes siting for things like landfills and
incinerators are more likely to be in poor communities rather than rich ones,
as the environmental justice movement would echo. However, other communities,
particularly small rural ones, have welcomed landfills for the monetary
benefits to the town which can be quite substantial, not to mention free trash
removal. Of course, those benefits will fade through time as the facility
fills, is closed, and becomes an environmental liability. For that reason the
landfills can be opposed by factions of the local population. Excessive truck
traffic is also problematic. Even the local transfer stations in NYC draw
complaints about the stink and rats. Metal and a few other valuables are picked
out. There are about 450 tractor trailer loads going out of the transfer
stations per day.
Two key problems of sanitary landfills soon appeared:
release of methane and toxic liquid leachate. Collection systems for both
methane and leachate became required under 1991 amendments to the EPA’s
Resource Conservation and Recovery Act (RCRA). This shut down many dumps and
consolidated others into larger ones. In 1988 there were nearly 8000 U.S.
landfills. By 2002 there were only 1767. The new “megafills” could take
advantage of construction economies of scale. Royte was still trying to get
visits to landfills – the closed Fresh Kills and one in Bethlehem,
Pennsylvania. She ended up paddling around the Fresh Kills area with a salt
marsh ecologist to try and have a look at what was once the largest landfill in
the U.S. She eventually gets to visit.
“Dry tomb” landfills involved isolating garbage so that
leachate flows along plastic barriers and can be collected and perforated pipes
and pumps could collect methane and the other gases. A differing method is the
“wet tomb” or bioreactor method which enhances decomposition and subsequent
methane and leachate production. The leachate can be injected back into the
garbage stream to further accelerate decomposition. A downside is that there is
more leachate available to leak. An upside is that the increased rate of
decomposition frees up more space faster. Leachate is a toxic stew of household
products and decomposition products. It is often treated and then released back
into the environment. Landfills will leach toxins for vast periods of times.
Old Roman waste pits still leach toxins. Landfill liners will leak eventually.
Since leachate contains nitrogen and phosphorus and its presence in surface
water can be beneficial for plants and sea creatures as they take up these
nutrients. The ecologist did a restoration of the shore around part of the
landfill to further filter out the leachate with grasslands fed by a surface
water capture system. They end up getting chased off by a “sanitation cop”
guarding the landfill just for paddling too close.
Next she visits IESI’s landfill in Bethlehem, PA. The
manager kinda gives her the runaround showing her the recycling area but saying
he was too busy to show her the landfill. I remember in the 90’s when we used
to drive our own trash to the local landfill in West Virginia once a week when
they allowed it – tipping it by throwing bags from the back of the truck right
into the readied pits. You could see all the other pits in various stages of
covering and reclamation. She manages to sneak under a fence into the landfill
proper but can’t get anywhere near the activity. The manager was quite
uncooperative.
Next is mention of organized crime in the commercial waste
hauling business, particularly in New York City. 23 hauling companies were part
of a 1995 indictment. This was part of Guiliani’s fairly successful push
against organized crime. These corrupt companies were also severely
overcharging for commercial trash removal. After the mob was run out the void
was filled with consolidation by the larger companies.
A 1998 study noted that escaping landfill gases contributed
to significant increases in bladder cancer in leukemia in those who lived very
close to landfills. Other studies noted increases in birth defects. Although
these studies weren’t definitive in terms of cause and effect, they were
suggestive.
Modern landfills have better containment and collection
systems but also cost more to construct and maintain. Layers of gravel,
geotextile fabrics, sewage sludge to accelerate decomposition, compacted sand,
thick high-density polyethylene geomembranes, and compacted impermeable clay,
make up the cells.
Next she visits an incinerator, a modern waste-to-energy
(WTE) facility. Such facilities burned about 13% of U.S. trash at time of
publication. She watches as trash is tipped and the big metals are removed as
much as possible. Then conveyor belts with magnets take away more metal. The
facilities are outfitted with state-of-the-art pollution control devices – they
have to be since the smoke tends to be especially toxic. Even so, the air
emissions are still considered quite toxic and not welcomed by many. While the
scrubbers take care of the fly ash, there is also the bottom ash which is full
of toxic heavy metals. These are put in standard landfills after treatment but
will likely increase overall leachate toxicity.
She visits Nick Themelis at Columbia University’s Earth
Engineering Center. He touts the benefits of WTE over recycling, composting,
and landfilling, at least from an engineering perspective. There is much debate
regarding the relative benefits these four methods of dealing with waste in
terms of energy use, potential for environmental harms, cost, and
effectiveness. WTE plant costs are high due to siting and pollution control
requirements. In the past they seem to have been preferentially located in low
income areas, thus feeding the arguments of the environmental justice
movement.
She visits a landfill in New Jersey with an environmental
consultant. There was a large building with a tipping floor where municipal
trash was compressed into small cubes. Outside she observes the cells being
filled with these cubes of trash.
Next she attends Robin Nagle’s Urban Anthropology class at
New York State University. Sanitation workers were speaking including the
director of Fresh Kills. Nagle also worked as a sanitation worker in order to
ethnographically document sanitation workers. The Fresh Kills director,
Diggins, noted that Fresh Kills had finally got up to code just before it was
closed. The leachate collection and methane collection and flaring systems had
managed to vastly improve the previous bad odors. She and Nagle get to visit
Fresh Kills with Chief Diggins. She notes that there is only a faint smell of
gas and that most areas are reclaimed quite well on the surface. Due to the
extensive mounds of well covered trash reaching up hundreds of feet, she notes
the majestic view from the top. She gets to see a leachate seep that is
particularly stinky. She also gets a private lecture on leachate from a
landfill engineer at DSNY.
Compacted bagged trash in dry tomb landfills is more like
mummification than decomposition as 70-90 year old stuff may not decompose at
all, particularly plastics. Wet tomb landfilling takes advantage of anaerobic methanogenic
microbes to radically break down the organics but it also increases methane and
other gas emissions. Fresh Kills landfill isn’t lined, is in swampy ground with
widespread fluid movement compared to other more modern lined landfills. Thus
its rate of decomposition is much higher. The methane collected from Fresh
Kills runs a gas power plant that can power about 14,000 homes. The WTE plant
she visited was said to be able to power about 50,000 homes. Landfills without
methane collection systems are susceptible to large vented releases of methane
and underground fires that can be hard to contain. She makes an error regarding
the amount of methane produced from Fresh Kills (15BCF/year or 40+MMCF/day)
relative to world methane production but it is quite a bit. Landfills at the
time were the largest source of anthropogenic methane – now they are still
close – the top three in the U.S.: landfills, agricultural (enteric
fermentation from cows and manure management), and leakage from oil and gas
systems are all nearly the same amount – about a third each. Globally, rice
paddy farming contributes a significant amount. Raw landfill gas also contains
many other toxic gases as well as CO2 so separation, treating, and flaring are
also necessary. Landfills, WTE incinerators, and farmers are eligible for
government subsidies but oil and gas systems are not. She visits the leachate
treatment plant at Fresh Kills where ammonia is treated and released and
suspended solids are precipitated out. The treatment plant also produces a
significant amount of sludge which is dewatered, mixed with lime, and trucked
to another landfill for isolated storage.
Next she recounts her own home composting project and the
subject of composting in general. Her own project was not very successful but
she gives some stats of the time (~ 2005) for composting in the U.S. for
organics, food waste, and yard waste. Composting requires significant oxygen
for aerobic bacteria to decompose the organic matter into organic acids. When
sulfurous compounds form later in the process the trash begins to stink –
humans are quite sensitive, to even one part per billion, to the odors of sulfur
compounds. Odor researchers also found that one’s cultural history affects
whether one views smells as disgusting, dangerous, or acceptable. The EPA noted
that 67% of U.S. waste could be composted. I have been doing it for years and
it is not too much work. If one has animals around, both domesticated and wild,
they will help with getting rid of food waste as well. She meets with an urban
composting activist and they discuss the economics of composting and anaerobic
digesters (ADs), which can produce compost and biogas. ADs can decrease overall
greenhouse gas emissions and convert carbon into gas and gas into energy – they
are big in Europe and currently taking hold in the U.S. to help curb methane
emissions, mainly from farms and food waste. She visits the compost farm at the
Lower East Side Ecology Center. It makes 750 lbs of compost from 3000 lbs of
raw materials per week. The compost is blended with vermiculite, perlite, peat
moss, greensand, and black rock phosphate to make New York City Paydirt, which
was going for $1 per pound. The leachate from the composting operation goes
down the drain which suggests highly concentrated corrosive leachate is being
dumped, possibly directly into the East River. The Ecology Center was operating
at a loss but made up the difference with government grants. The director also
favored AD, which has a fair shot of being economic even without subsidies or
with small ones. That is the only way composting can be economic, many would
say. She mentions that food waste disposers which grind up food waste and put
it down the drain can end up harming aquatic life with the increased nitrogen
loads. However, it can also add nutrients for sewage consuming microbes. Comparing
impacts shows there are trade-offs: more food waste down the drain means less
diesel-consuming trucks carrying the heavy food waste away. Food waste
disposers also use water. Some hardcore environmental groups think water should
only be used for drinking and washing and not for transporting sewage or food
waste. Food waste collection has been implemented in some places but it is hard
not to lose money in such ops. Commercial collection of food waste from
restaurants, grocery stores, yard waste, agricultural waste, and even manure
can be collected on a larger scale and fed into well-sited commercial ADs.
Recycling finally took off in the late 1980’s in the U.S.
with newspaper and corrugated cardboard leading the charge. She travels with a
DSNY recycling pick-up trash truck. She visits a paper recycling plant and goes
through the process of cleaning, heating, dewatering, vacuuming, etc.
Paper-recycling mills actually produce more short-fiber waste than virgin
mills. In 1988, 30% of U.S. paper was recycled. By 2002 it climbed above 50%. Clean
white paper can be recycled about 4 times before its short-fiber content is too
much. Paper recycling has slowed deforestation. Going paperless in our
increasingly on-line realm has also likely slows it.
Next is metal recycling. She visits the Hugo Neu
Corporation, one of the largest metal recycling companies in the world. Neu
started in New York and now exports bulk scrap steel, much of it to China where
it is further shredded and processed. They also deal with car metal. She talks
with Wendy Neu about their scrapyards and environmental liabilities. Steel, aluminum,
copper, brass, and most metal recycling are very useful and conserve mineral
resources. Royte visits their Jersey City scrapyard and sees how the metals are
sorted and separated.
Next she explores household toxic waste and recycling.
Battery recycling recycles significant amounts of nickel cadmium, nickel metal
hydride, lithium-ion, and lead batteries. According to the Rechargeable Battery
Recycling Corporation much of it goes to a facility in Pittsburgh which Royte
visits next. Here the components are extracted out and sent to supply other
local industries: glass makers, battery, and stainless steel manufacturers.
Such metal recycling is still polluting but far less so than mining new raw
materials. Along with lead batteries, solvents and mercury are banned in
landfills, though it is hard to keep them out from household trash. Royte
brings her own household hazardous waste to a drop-off site. She notes that
managers are quite guarded about where all this highly concentrated toxic waste
goes – but usually to industries after sorting and processing. Electronic waste
is a huge issue for recyclers. These devices also contain toxic waste which is
not good for landfills or incinerators. Big operations use detailed magnet
sorting and weight sorting for the e-waste. They note that glass is more a
liability than a commodity – they pay smelters to take it, mainly for the lead.
Lead, copper, and zinc smelting plants have been linked to local pollution and
lead poisoning. Much of our e-waste is shipped to China, India, and Pakistan. Much
of the e-waste extraction is chemical extraction and can be associated with
safety and health risk to workers and environmental damage in China. The
alternative to exporting e-waste is sweatshops – as e-waste recycling is not
profitable. Some have advocated and implemented “extended producer
responsibility (EPR) where dead products can be sent back or taken back to
producers but that involves work, time, and inconvenience. In Switzerland the
bulk e-waste is brought back to retailers but the cost of recycling is added
into the purchase price. Recycling is not and won’t become profitable and yet
it is rarely subsidized like other feel good green projects.
Plastic is the next subject. She visits American Ecoboard, a
company that re-melts recycled plastic and reinforces it into plastic composite
resin lumber. She visits a municipal recycling facility (MRF), Allied Waste.
She gets a primer in classification of consumer plastics, which was developed
to assess recycle-ability, HDPE, LDPE (high and low density polyethylenes),
PVC, and others. She discusses the effects of bottle bills (paying to take
bottles) and the effects on recycling (recyclers often don’t like them because they
get less weight in glass and plastic). She discusses the Keep America Beautiful
anti-litter campaign (created by beverage companies and known as a prime
example of corporate greenwash) and their ambivalence. Evidence suggests that
bottle bills do increase recycling rates significantly, or at least had for a
while. Only a small percentage of glass bottles are refilled. Only in some
Scandinavian countries are PET (polyethylene terephthalate) plastic bottles
refilled and only because the PET bottles there are thicker and stronger. Most
recycled glass and plastic is re-melted. Other destinations for recycled
plastic are sleeping bag fill, carpets, products like the ecoboard, and fleece
products like jackets and blankets. In 2003, 35 % of recycled PET plastic was
exported, mostly to China for cheaper processing there. She mentions a
Greenpeace report that showed that Pepsi and other companies were sending low
grade recycled plastic to India where they are processed in ways that here
would be considered unsafe and much of them ended up in unlined landfills
there. One bottom line is that virgin plastic is still far cheaper and easier
to deal with than recycled plastic. Plastic production is associated with
toxins such as trichloroethane, acetone, methylene chloride, methyl ethyl
ketone, styrene, toluene, sulfur oxides, nitrous oxides, methanol, ethylene
oxide, and volatile organic compounds. Benzene and vinyl chloride are inputs.
Plastic is also known for being very slow to biodegrade and more recently the
issue of micro-beads of plastic entering the environment en masse is seen as a
potentially serious problem if not abated. Reduction of packaging is one
partial solution to overuse of plastic. Plastic bag bans have met with only
marginal success but are currently popular in some areas. Curbside recycling
has been quite successful in some areas and more marginally so in others. I
live rural and deliver my recyclables to a local recycling center.
Next the exciting world of poop is explored beginning with
the once symbolic issue of disposable diapers. One study suggested that
disposable diapers made up to 2.1% by weight of landfill deposits. Reusable
cloth diapers would increase both water and waste into the sewage system. About
20% of sewage sludge is used by landfills to enhance biodegradation. Next she
visits a manager of the DEP Division of Wastewater Management to track the
journey of her shit through the pipes. Before the 1980’s her “effluent” would
have made it into the Gowanus canal. One problem for sewage treatment is
commercial food establishments without adequate grease traps. I once had a job
cleaning these grease trap systems which included scraping disgusting grease
muck and high pressure spraying from roof vents with caustic soda imbued water.
Nowadays used oil can be filtered and used as biodiesel which is another feel
good green thing – fine in itself but not enough to go around to make a
significant impact. Biodiesel is cleaner than regular diesel but still makes
significant pollutants when burned. In times of high water runoff the sewage
system gets filled and some effluent (more dilute now) does end up in the harbor.
“As recently as the seventies, New York was still
discharging 450 million gallons of raw sewage a day into the waterways
surrounding the five boroughs. Until 1986, the entire west side of Manhattan,
north of Canal Street, discharged its sewage [untreated] into the Hudson.”
In a big rain storm as much as 40% of the raw sewage stream
is diverted into local waterways and this is apparently the case in many large
cities. Storm water runoff also picks up toxins from the ground, from
incomplete combustion, from illegally dumped waste and grease, and from
commercial establishments, and adds them to the wastewater system. They
followed the gulls, drawn to faint H2S, to the Owl’s Head Treatment Plant where
homegrown methane ran engines and 120 million gallons of raw sewage is treated
per day. Here solids and liquids are separated and pumped through settling
tanks, ‘scum concentrators,’ and aeration tanks. The manager described the
sewage treatment plant as a digester that concentrates and accelerates
decomposition. The solids as sludge are filtered and used to assist landfill
biodegradation and may be spread on farm fields, preferably after further
processing. The sludge contains toxins. The effluent certainly contains varying
levels of toxins since many toxic substances go down drains. Here the treatment
plant also had a large digester and after being digested by anaerobic bacteria
the sludge was shipped by barge to a dewatering plant and dried into a raw
material product.
“For decades, the DEP dumped 1200 tons of sewage a day from
a tanker parked twelve miles off the city’s shore.” EPA announced the waters
‘dead’ in 1985. Oxygen was depleted and shellfish were contaminated with
bacteria and heavy metals. Boston as well as New York had practiced ocean
dumping of sewage. It was outlawed in 1988 by Congress with the Ocean Dumping
Reform Act which went into full effect in 1991. So now the solids had to be
further processed and further treated to reduce pathogens. Acceptable levels of
lead, arsenic, mercury, and chromium were raised by the EPA, say some, to
accommodate sewage so it could be reclassified. It was renamed ‘biosolids.’
Several new sewage-based fertilizer local products came from various cities. At
least one tested very high in cadmium. She gives stats for dried sewage sludge
at the time (~2005): 54% relabeled “biosolids,” 28% buried in landfills, and
17% incinerated. After ocean dumping was banned a company (Merco) landed a
contract to spread this New York waste on ranch land in western states but
several states banned it until a donation was made to Texas Tech to study
sewage and dump it at Sierra Blanca, a small town in southwest Texas where a
81,000 acre site was used for the sewage farm. The smell was horrendous
according to many and the waste tested very high in fecal coliform bacteria. I
think it was some sort of quasi-political scandal as well regarding the place
selection. Dry sewage pellets also went to citrus groves in Florida and corn
and soybean farms in Ohio. Processing facilities often have bad smells even
though the manager there in NYC was an expert in odors and how to neutralize
them – one method is a regenerative thermal oxidizer which raises temps to over
1600 deg F. Even so, people still complain about the smells and are affected by
them. NYC sewage sludge contains magnesium, cadmium, copper, zinc, iron,
mercury, selenium, and lead (leached from pipes). Some of those are toxins but
several are plant nutrients at typical concentrations as well as nitrogen and
phosphorous. It is also high in the toxin dioxin – the 2nd highest
source after backyard trash burning. There are allowable levels for Class A
biosolids (300 ppm) and various sewage end-products are allowed or not allowed
to be applied for food producing agriculture. EPA’s sewage sludge regulations
have been criticized. I am unaware of any developments after publication of
this book. There is anecdotal evidence associating class B biosolids with all
kinds of medical problems but such ‘evidence’ is common with any industrial
contact so it is hard to know which cases, if any, are legitimate. However,
there are some definite cases of bacterial poisoning of cattle and staph
infections so sludge exposure poisoning is a real issue. Since sludge is not
always a consistent product it stands to reason that some batches could be
considerably more toxic than others. The EPA denied a petition to ban land
application of biosolids in 2004. Sewage-treating marshes were in vogue for hip
small cities but such wetlands are impractical in most places as well as a liability.
Next she visits a homemade grey water treatment zone and
delves into waterless composting toilets. I looked into the toilets years ago
but at 30 times the cost of a toilet plus maintenance requirements and
potential odor issues it seemed nonsensical. The do-it-yourselfer guy she
visited made his ‘humanure’ into compost aided by worms and used it on
ornamental plants. Composting of human excrement is often recommended over new
sewage systems in developing countries due to having less overall environmental
impact if done correctly. She visits an art exhibit with her young daughter
which shows and replicates the human digestive system through Plexiglas. They
sit near the anal sphincter!
Next she examines consumerism and the possibility of
decreasing our waste stream. Less packaging has been one trend to address waste
volume and weight. Curbside recycling is another. She examines obsolescence,
planned and not. There is functional obsolescence (like say faxes) and style
obsolescence. Decreasing the amount of waste per product life can be achieved
through life-cycle analyses, say the authors of a study culminating in the
book, Cradle to Cradle (I may read
that one). Consumption reduction is obviously the most impactful solution but
with increasing population and increasing development of developing countries
that is not likely to happen overall. “Corporate citizenship,” or rather
perceptions of it among consumers, influences buying decisions – unless the
cost variations are too extreme. She goes through the effect of holiday
consumerism and even the curbside pickup and drop-off of spent Christmas trees.
She goes on a tree collecting run with DSNY. Royte shares her own feelings
about being green and how it makes her feel more useful. I think that’s fine as
long as it doesn’t devolve into pointing fingers at others too much.
She visits a 2-day roundtable about recycling by the
Citywide Recycling Advisory Board and others. Industry and environmentalists
were present. Producer responsibility was brought up and other recycling issues
were talked about and debated. She meets the director of San Francisco’s
recycling system and flies out for a visit to see the new $38 million MRF –
lured by the possibility of learning more about the ‘zero waste’ concept. Of
course, she is not so naïve as to take zero waste literally but more as a
guiding principle. The goal in San Francisco was to maximize recycled content
and minimize landfilled content. I think maybe zero waste is a ‘cart before the
horse thing’ – that maybe less waste should precede zero waste like increased
renewable energy should precede 100 % renewable energy and less emissions
should precede zero emissions. She explores with a manager of the waste
management company Norcal. She spends (a few months?) exploring San Francisco’s
garbage system and compares it to New York’s: San Fran is a pay-as-you-throw
system separated into black = rubbish, blue = recyclable, and green = organic.
Pay-as-you-throw disproportionately burdens lower income residents. It also
increases deliberate dumping. Recycle bins encourage theft by bottle redeemers.
Collecting food from restaurants increased San Fran’s diversion rate by 15% and
this source stays isolated to be composted at a landfill and used to produce
crops that are in turn bought by the same restaurants, thus “closing the loop,’
as the MRF manager noted. Anti-recyclers have argued that materials are getting
cheaper while labor is getting more expensive so recycling is not worth the
bother. Better automation and industrial technology improvements could make
recycling more economic and a desire to recycle among the populace should keep
streams of it coming through. Mandatory recycling will also help increase the
diversion rate. Recycling costs and mandates on businesses incentivize
packaging reductions. The MRF was a vast complex with 87 conveyer belts moving
recyclables. She wonders if the line workers (as at the Hugo Neu Corporation)
were happy with their jobs and their levels of possible exposure – to what I am
not sure except maybe toxic dust. Recyclable sorting can vary depending on what
materials have the most demand for given areas. PET plastic was the most
valuable at the MRF but much of it was exported rather than used locally.
Norcal is paid for garbage collection (not the city as in DSNY). They also pay
to tip at the landfill so their recycling facilities decrease tipping fees as
well as increase revenue by selling recyclables. Apparently. It is still
cheaper to make glass from old glass rather than virgin silica (less heat required)
so recycled glass still has valuable markets. Next they visit Norcal’s subsidiary
organics composting facility where mostly commercial food waste was shredded.
These were apparently diesel powered industrial composters with high greenhouse
gas and VOC emissions – not anaerobic digesters. The final compost, or organic
fertilizer, was sold to wineries, organic farms, and landscapers. She also
visits a famed recycling center in Berkley – Urban Ore, an “urban junkyard.” This
is a large and well-vetted re-use/re-purpose facility which favored ingenious
and creative ways to divert waste into useful products and also just sorted and
held on to used stuff until new owners and uses were found for them.
In the final chapter Royte contemplates the role of an “ecological
citizen.” Garbage researchers have called sorting garbage a Zen-like societal experience.
I can attest to once learning the Zen of dumpster diving! Her own new garbage
logging, composting, and recycling habits changed her perspective about waste.
It also changed her habits regarding trash placement so as to be kinder to
those who take it away. She mentions conversations with a PhD sociology
candidate that thinks recycling is pointless and diverts attention from the
real problem – consumers and capaitalists. Statistics say that municipal solid
waste is just 2 % of the nation’s waste, that the rest is commercial, from
agriculture, mining, and industry, and much of it (~ 75%) is in the category of
non-hazardous industrial waste. Much of all this waste is really the waste it
took to create the consumer products that produce the municipal solid waste. So
basically our waste would increase by 50 times if we included a cradle-to-grave
waste stream of the products we buy and use. Such a ‘multiplier effect’
suggests that reducing one’s waste stream by any amount reduces that amount
much more in the full life cycle. However, that is not always the case since
some of the things we buy (like say gasoline) produce no waste that we can see
- of course we can buy a more energy efficient low emissions vehicle to
decrease carbon emissions and polluting waste. All kinds of technologies are
currently being explored for processing trash. Most are energy intensive but
some generate and run on their own energy like anaerobic digesters that often
run on the biogas they produce. She participates in a beach cleanup and even
though such cleanups merely slow down the trash stream and clear it
temporarily, it is still dutiful for an ecological citizen to do it – reminds
me I am a bit behind on my road cleanup. It is volunteering, community service,
and we should all do some.
Garbage Land is a thoughtful book. The narrative is often
entertaining, and shows the personal demeanors, character, and biases of the
people Royte meets to discuss and explore waste. It is rife with data,
speculations, still current debates, and the realities of human waste.
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