Coal washing wastewater contains oil, fine coal powder, and clay suspended solids, which have strong suspension characteristics in water. Therefore, it is difficult to remove substances from water using natural precipitation methods. Moreover, coal washing wastewater has high chromaticity, turbidity, and chemical oxygen demand. Many coal washing plant customers are very troubled by the treatment of coal washing wastewater. Here, we will explain how to effectively treat impurities in water using polyacrylamide and reduce wastewater to clean water.
In multiple experiments, it has been found that using flocculation method to treat coal washing wastewater can reduce water consumption costs, and the wastewater can recover coal slurry to reduce coal loss. It also has economic benefits and can protect the environment, making it suitable for use in various large, medium, and small coal washing plants. Many customers do not know how to choose polyacrylamide when they first use it, and the treatment of wastewater from different coal mines in different regions is also different. Therefore, some may not be treated thoroughly. At this time, it is necessary to conduct water sample testing and select suitable products. After the coal slag in the sewage is separated, the coal slag can be sold, and the treated water quality can also be recycled. During the process of coal washing, the pH value of the wastewater may become acidic. You can first adjust the pH value to around 7, and then use a suitable polyacrylamide to separate the water and coal slurry powder.
