With the continuous advancement of industrialization,heavy metal pollution in wastewater has become a major problem in environmental protection,and these heavy metals pose a serious threat to the environment and human health.In order to solve the harm of heavy metals to the environment and human health,the text studies the heavy metals in metal surface treatment wastewater,analysis of pure zirconium salt surface treatment technology,silane surface treatment technology,silane-zirconium salt composite surface treatment technology,surface treatment pollutants and wastewater,so as to further understand the heavy metal surface treatment wastewater.
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