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The case of sewage collar discharge?

Aug 16, 2019

Since the 1970s, individual industrial sectors have been exploring the concept of "zero discharge". At that time, it mainly meant that no waste water was discharged from factories, and all waste water was treated with secondary or tertiary sewage, leaving only solid waste residue for reuse.It was only in 1994, when Gunter Pauli, a Belgian entrepreneur, launched the Zero Emissions Research initiative, which raised Zero Emissions from discrete activities to a theoretical system.In 1998, the United Nations officially recognized the concept of "zero emissions" and started a pilot project in cooperation with ZERI foundation.In 1999, the United Nations university (unu), headquartered in Japan, established "unu/zero-emission BBS". In 2007, this BBS cooperated with the department of resource conservation and environmental protection of the national development and reform commission to hold "develop circular economy and promote zero-emission of waste" BBS in Beijing.

Electroplating wastewater reuse equipment

In view of the current "Zero Discharge" discussed in our society, it is mainly "Zero Discharge of wastewater" in the original sense, or ZLD(Zero Liquid Discharge) for short.