Suatu kasus yang apabila di diamkan , di cuek-in akan membawa malapetaka
bagi kemanusiaan. Manusia yang sekarang mencapai jumlah 6 milyard orang lebih
akan memberatkan planit bumi.
Diberikan satu contoh, keluarga ber-anggotakan 5 orang akan memerlukan 150
000 liter air untuk menggelontor toilet setiap tahunnya.
Contaminasi yang dibebankan atas kesalahan manusia sendiri achirnya akan
mencelakan kelestarian manusia dan alam sekelilingnya.
Dalam kunjunganku yang terachir tahun lalu mulai aku pikirkan bagaimana itu
pengolahan wste yang diprodusir oleh penduduk Jakarta yang mencapai jutaan
orang. Sangat mengerikan kendala sampah yang di "produsir" oleh penduduk
Jakarta.
Apakah ada teman2 disini yang tahu, terutama di Swedia , Amerika dan China
soal apa yang disebut dalam tulisan dibawah ini sebagai..."dry toilet"? Inilah
kiranya yang paling baik di terapkan untuk menyelamatkan kemanusiaan dari
uruk-an kotoran yang diproduksinya sendiri.
Harry Adinegara
---------------------------------
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[input] Globalist Perspective > Global Environment
Pottytraining the World
By Lester Brown | Monday, October 01, 2007 With the global population
surpassing 6.7 billion and emerging economies consuming greater amounts of
natural resources, water is becoming increasingly scarce. Lester Brown
advocates a practical way in which people can take matters into their own hands
and clean up their environmental act.
In urban settings, the one-time use of water to disperse human and industrial
wastes is becoming an outmoded practice, made obsolete by new technologies and
water shortages. Water enters a city, becomes contaminated with human and
industrial wastes, and leaves the city dangerously polluted. Toxic industrial
wastes discharged into rivers and lakes or into wells also permeate aquifers,
making water ââ¬â both surface and underground ââ¬â unsafe for
drinking. Better waste management And their The
existing water-based waste disposal economy is not viable. There are too many
households, factories and feedlots to simply try and wash waste away on our
crowded planet. toxic wastes are destroying marine ecosystems, including
local fisheries. The time has come to manage waste without discharging it
into the local environment, allowing water to be recycled indefinitely ââ¬â
and reducing both urban and industrial demand dramatically.
The current engineering concept for dealing with human waste is to use
vast quantities of water to wash it away, preferably into a sewer system where
it will be treated before being discharged into the local river. Harmful
consequences The ââ¬Åflush and forgetââ¬Â system is expensive,
water-intensive, disrupts the nutrient cycle ââ¬â and is a major source of
disease in developing countries. As water scarcity spreads, the viability
of water-based sewage systems will diminish. Water-based sewage systems take
nutrients originating in the soil and typically dump them into rivers, lakes or
the sea. Killing natural resources Not only
Fortunately, there is a low-cost alternative ââ¬â the composting toilet.
This is a simple, waterless, odorless toilet linked to a small compost
facility. are the nutrients lost from agriculture, but the nutrient overload
has led to the death of many rivers and to the formation of some
200 dead zones in ocean coastal regions. Sewer systems that dump untreated
sewage into rivers and streams are a major source of disease and death.
Sunita Narain of the Centre for Science and Environment in India argues
convincingly that a water-based disposal system with sewage treatment
facilities is neither environmentally nor economically viable for India.
She notes that an Indian family of five, producing 250 liters of excrement in a
year and using a water flush toilet, requires 150,000 liters of water to wash
away its wastes. Spreading germs As currently designed, Indiaââ¬â¢s
sewer system is actually a pathogen-dispersal system. It takes a small quantity
of contaminated material ââ¬â and uses it to make vast quantities of water
unfit for human use, often simply discharging it into nearby rivers or streams.
Narain says both ââ¬Åour rivers and our children are dying.ââ¬Â
Indiaââ¬â¢s government, like that of many other developing
countries, is hopelessly chasing the goal of universal water-based sewage
systems and sewage treatment facilities ââ¬â unable to close the huge gap
between services needed and provided, but unwilling to admit that it is not an
economically viable option. Narain concludes that the ââ¬Åflush and
forgetââ¬Â approach is not working. A new approach This dispersal
of pathogens is a huge public health challenge. Worldwide, poor sanitation and
personal hygiene claim The ââ¬Åflush and forgetââ¬Â
system is expensive, water-intensive, disrupts the nutrient cycle ââ¬â and
is a major source of disease in developing countries. 2.7 million lives per
year, second only to the 5.9 million claimed by hunger and malnutrition.
Fortunately, there is a low-cost alternative ââ¬â the composting toilet.
This is a simple, waterless, odorless toilet linked to a small compost
facility. Table waste can also be incorporated into the composter.
The dry composting converts human fecal material into a soil-like humus,
which is essentially odorless and is scarcely 10% of the original volume. These
compost facilities need to be emptied every year or so, depending on design and
size. Manifold purpose Vendors periodically collect the humus and can
market it as a soil supplement, thus ensuring that the nutrients and organic
matter return to the soil, reducing the need for fertilizer. This
technology reduces residential water use, thus cutting water bills and lowering
the energy needed to pump and purify water. As a bonus, it also reduces garbage
flow if table waste is incorporated, eliminates the sewage water disposal
problem and restores the nutrient cycle. Pioneering use The U.S.
Environmental Protection Agency now lists several brands of dry toilets
approved for use. Pioneered in Sweden, Sewer systems that
dump untreated sewage into rivers and streams are a major source of
disease and death. these toilets work well under the widely varying
conditions where they are now used, including Swedish apartment buildings, U.S.
private residences and Chinese villages. At the household level, water can
be saved by using showerheads, flush toilets, dishwashers, clothes washers and
other appliances that are more water-efficient. Some countries are adopting
water efficiency standards and labeling for appliances, much as has been done
for energy efficiency. When water costs rise, as they inevitably will,
investments in composting toilets and more water-efficient household appliances
will become increasingly attractive to individual homeowners. Other
methods For cities, the most effective single step to raise water
productivity is to adopt a comprehensive water treatment/recycling system,
reusing the same water continuously. With this system, only a small
percentage of water is lost to evaporation each time it cycles through. Given
the technologies that are available today, it is quite possible to recycle
urban water supplies comprehensively, largely removing cities as a claimant on
scarce water resources. The existing water-based waste disposal economy is
not viable. There are too many households, factories and feedlots to simply try
and wash waste away on our crowded planet. To do so is ecologically mindless
and outdated ââ¬â an approach that belongs to an age when there were many
fewer people and far less economic activity.
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