Jiangsu Baosteel Precision Steel Wire Co., Ltd.
Background of the project:
Jiangsu Baosteel Precision Steel Wire Co., Ltd. is a wholly-owned subsidiary of Baosteel Metal Co., Ltd. and mainly produces steel cords in the fields of automotive and energy and photovoltaics. The heavy metal and dilute acid wastewater generated needs to be treated.
Haimen City, Jiangsu Province
Steel cord wastewater contains heavy metals (copper, iron, zinc, etc.) and waste acids, which are strictly controlled industrial pollutants. If the control conditions are not good, the amphoteric metal is easy to be dissolved and the water is not easy to reach the standard.
1. Adopt multi-stage micro-flocculation and sedimentation technology to achieve the standard of heavy metal concentration in effluent;
2. Micro-adjustment of acid and alkali, 20% reduction in the use of chemicals , and 30% reduction in sludge ;
3. waste acid pretreatment recycling to the pickling tank, to achieve cleaner production;