通过这种处理，在中和沉淀渣的小颗粒上形成完全的铁酸盐包复膜，在弱酸性条件下重金属离子不再浸出。
Through this kind of disposal process, heavy metal ions will no longer leach out from NPS under weak acidic conditions.
废水未经沉淀，夹渣排放；某稀土厂废水是污染负荷的主要因子。
The reason is that waste water was discharged before the precipitation.
采用中和—加药混凝—沉淀—压滤除渣的方法处理铝型材加工氧化着色污水。
The oxidation pigmenting effluent of aluminium product process was treated with the method of neutralization coagulate precipitation.
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