Main technical indicators: During the production of CIGS thin film photovoltaic components, a large amount of wastewater containing ammonia nitrogen, heavy metals (blacklist substances) and organic substances need to be discharged. Due to the high concentration of pollutants and the high harmfulness of such wastewater, in accordance with the requirements of clean production and relevant environmental protection regulations, photovoltaic production companies need to treat it to very high standards before discharging or recycling it.

Current application status: In 2009, I completed the research and development and design of a CIGS photovoltaic wastewater treatment process package with a German photovoltaic technology supplier, and successfully applied it in the wastewater treatment project of Shandong Vosges Photovoltaic Technology Co., Ltd. In 2014, he successfully won the bid for the CIGS wastewater treatment projects of Hanergy's Zibo and Nanjing bases and became Hanergy's environmental protection supplier.

Application prospects of "civilian joining the army" or "military conversion": Photovoltaic CIGS thin film battery production wastewater recycling technology has certain use space in island construction. It is hoped that the military logistics construction department will cooperate to develop and apply it.