An improved method for killing over-sprayed paints which requires a) alkalinity adjustment of paint spray booth water to at least about 50 ppm, preferably about 200-600 ppm, on a calcium carbonate basis; b) addition of a melamine-formaldehyde polymer to paint spray booth water; c) addition of a polymeric coagulant to paint spray booth water; and d) separation of the resulting floc.  
                            一种杀灭过喷涂料的改进方法,要求 a) 将喷漆室
水的碱度调整到至少约 50 ppm,最好约 200-600 ppm(以
碳酸钙为基础);b) 在喷漆室
水中添加
三聚氰胺-
甲醛聚合物;c) 在喷漆室
水中添加聚合凝结剂;d) 分离产生的絮凝物。