绿色矿冶

Rural ponds serve for ecological protection, drought relief, flood storage and farmland irrigation, but they have been vulnerable to pollution in recent years. Based on the investigation and analysis of the current situation of pond pollution in a certain area of northern China, according to the source of pollutants, ponds were classified into four types: initial rainwater ponds, domestic sewage ponds, industrial pollution ponds and livestock and poultry breeding pollution ponds. The pH, COD, nitrates/ammonia, total phosphorus of water bodies and heavy metal concentration in bottom sediment of various ponds were measured, in order to understand pond environmental features. Finally, Finally, the main problems and causes of pond pollution were summarized, and the treatment suggestions of “rubbish cleanup-interception at source-bottom sediment restoration-water purification-ecosystem building” were put forward.