Before the completion of the environmental impact assessment approval for the 200000 square meter printed circuit board technology renovation project of Weili Guang Technology, a public announcement was made, which clearly requires that organic waste gas be treated with water spray and secondary activated carbon, acidic waste gas be treated with dilute alkali washing tower, and cyanide containing waste gas be treated with dedicated sodium hypochlorite spray for full process control.
The project emphasizes upgrading existing environmental protection facilities rather than building new emission outlets, reflecting that the current PCB expansion is more focused on replacing green production capacity rather than simple scale expansion.
This type of approval case is becoming a reference template for environmental compliance in the PCB industry clusters of the Yangtze River Delta and Pearl River Delta.