Where lots of water, aggressive washing and sandpaper was once the norm for creating that worn vintage look, lasers and and ozone gas cameras are now being used to minimize water waste and chemical runoff.
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The ratings will cover eight broad categories: education, health care, water and waste water utilities, energy utilities, cities, counties and states, transportation, ports and airports, U.S. Treasuries and agency debt.
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Because the company is a leader in its field of water and waste-water treatment in China, it has enjoyed access to bank financing in the past, and has even been able to raise capital in the United States by selling its shares on NASDAQ.
For instance, water pumps and waste water treatment plants rely on electricity, so when power is lost for long periods of time, reserves are depleted and bottled water must be transported into the zone, usually by truck.
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In these locations disposal wells are drilled into existing underground salt-water aquifers and the waste water is pumped into these zones.
When completed, it will be one of the first net-zero energy and net-zero water-waste buildings in the country.
The next step on the water is polishing which brings the waste water to a usable water for irrigation.
The Sustainable Agriculture Code covers a large number of sustainability issues ranging from biodiversity and soils to water and waste.
The only emissions from the fuel cell itself are water and waste heat, which can be captured and put to use.
The group is thinking of pooling municipal services such as water and waste disposal, and even setting up a joint holding company.
The heat source can be solar energy, warm water or waste heat.
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Top holdings include a water and sewer revenue bond issued by Miami-Dade County, Florida, an Atlanta, Georgia Water and Waste Revenue Bond, and a New Jersey Health Care Authority Revenue bond.
Successful Green Cities: Examples of cities undertaking sustainable practices in specific sectors, such as energy supply, buildings, transportation, water and waste, but are there cities that are taking an integrated approach greening multiple sectors concurrently?
But water companies needed to invest in the sewer network to ensure untreated waste water was only released in urgent cases.
But arid Adelaide recycles over 30% of its water, and to its south, the vineyards of McLaren Vale are irrigated with the city's waste water.
Rather, as a consequence of injecting water and sand into the shale formation to crack the rocks so gas and oil will flow, massive amounts of waste water comes back to the surface with significant amounts of contaminants as a result of leaching out salt, heavy metals and trace amounts of radioactive materials from the rock formation itself.
And they are an exceptionally clean power source, producing only water vapor as waste.
United Utilities is converting a by-product of waste water at its Blackburn plant into gas.
Some communities have successfully taken the initiative over ordinary rubbish as well as waste water.
Experts say that with further development, it could find applications in cleaning up oil spills and waste water.
Mines and factories that make paint, batteries or electroplated products discharge waste water into local rivers and lakes.
Researchers in Scotland are taking a leading role in a project to reduce pharmaceutical residues in waste water.
Despite severe drought shortages in California, the general public has resisted converting waste water into drinking water.
The rate of tax paid by each household is also used to calculate waste water and refuse collection charges.
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Instead of draining away waste water, the workers on duty somehow flushed out thousands of litres of bulk whisky.
They export large amounts of wastes including household and industrial wastes, waste water and the gases linked with global warming.
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Mobile Fluid Recovery then used a massive high-speed drum to spin out all the absorbed oil and waste water from the booms.
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In the meeting, residents were urged to keep waste water to a minimum as concerns about the village's sewage system were raised.
First, a radioactive waste water spill outside of Chicago that went unreported.
The method uses biogas, which is produced when waste water sludge is broken down by microbes in a process known as anaerobic digestion.
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