A new technology for harnessing the dye polluted water and dye collection in the chemical factory

A new technology for harnessing the dye polluted water and dyecollection was developed. It is based on the enhanced evaporation by using solar, wind, and air temperature energy and additional heat-electric energy. It consists of four parts: (1) evaporation carrier system (evaporation carrier and frame for evaporation carrier) for polluted water; (2) polluted water circulating system (pumping-spraying-collecting); (3) heating system; (4) workshop with polluted water reservoir-tanks and rainfall prevention roof. The polluted water was (heated in case necessary) sprayed to the evaporation carrier system and the water was evaporated when it moved in the space and downward along the carrier mainly by using natural (solar, wind, and air temperature energy). In case, when there is no roof for the carrier system, thepolluted water can be stored in the reservoirs (storage volume for about 20 days). The first 10-25 mm rainfall also need to be stored in the reservoirs to meet the state standard for discharging wastewater. The dye may be collected at the surface in the reservoir-tanks and the crystallized salt may be collected at the bottom plate. The black-color wastewater released by the factory is no more discharged to the surface water system of Taihu Lake Basin. About 2 kg dye and 200 kg industrial salt may be collected from each tone of the polluted water. The non-pollution production of dye may be realized by using this technology with environmental, economical and social benefits.

作 者： PU Jiang-ping PU Pei-Min HU Chun-hua QIANG Jun-ling PU Jue-xing HUA Ji-kang   作者單位： PU Jiang-ping(PLA Polytechnic University,)

PU Pei-Min,HU Chun-hua,QIANG Jun-ling(Nanjing Institute of Geography and Limnology,CAS,)

PU Jue-xing,HUA Ji-kang(Hongsheng Chemical Factory,) 

刊 名： 環境科學學報(英文版)  ISTIC SCI 英文刊名： ENVIRONMENTAL SCIENCES  年，卷(期)： 2001 13(2)  分類號： X703  關鍵詞：  

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