午夜香蕉AV一区二区三区,国产精品久久久久久久久软件,亚洲熟妇无码久久精品泽,国产卡一卡二卡三卡免费,久久精品国产72国产精品

Landfill leachate treatment plant in Xi’an
    This project is one of the key energy saving and emission reduction projects in Xi’an.  Due to its unique nature, it drew high attention of throughout the county. The system used in the project is the first one in China with sewage-water being in both sides of the sewage, or source cycle, and it is used to transfer heat from the treatment plant’s aerobic pool to its anaerobic pool via KC Blue’s anti-clogging, sedimentation-impeding heat exchanger.  No heat pumps were involved.  However, it directly saved energy by eliminating the need to burn 40 tons of coal, and it thus reduced CO2 emissions by 100 tons, SO2 by 1 ton, NOX by 2 tons, and dust/particulates by 7 tons, annually.