| Project Description | Guangzhou Nansha Electronics Co., Ltd., established on December 4, 1998, is a foreign-invested enterprise mainly engaged in printed circuit board manufacturing, special equipment manufacturing for the electronics industry, and integrated circuit manufacturing. Its wastewater treatment capacity is 12,800 m³/day. Before the upgrade, the copper concentration in the effluent at the wastewater treatment station ranged from 0.8 to 5.0 mg/L, exceeding the GB21900-2008 Table 1 standard limit of 1.0 mg/L for copper ions, and the effluent quality was unstable. After the upgrade, using our company’s catalytic self-electrolysis pre-treatment, the effluent copper concentration stabilized below 0.3 mg/L, meeting the requirements of GB21900-2008 Table 3. |
