With the rapid development of my country's economy, the scale of farms is also expanding, making a large number of livestock and poultry manure sewage become a source of pollution. If the sewage generated by these farms is not treated in time, it will inevitably cause great harm to the environment. Polyacrylamide PAM plays an important role in the treatment of breeding wastewater.
The hazards of pig farm wastewater:
The discharge of manure from the farms causes serious pollution of surface water, groundwater, soil and ambient air, which directly affects people's health. Untreated manure contains a lot of pollutants. If such organic wastewater is directly discharged into Or it may enter the rivers, lakes and lakes with the scouring of rain, and consume a large amount of dissolved oxygen in the water body, making the water body smelly and causing water pollution.
Features of pig farm sewage:
Pig farm wastewater includes washing wastewater, fecal wastewater, urine and so on. The swine farm has large sewage discharge, high pollution load, high organic matter concentration, and mixed solid and liquid.
Pig farm sewage treatment method:
When treating pig farm wastewater, the first thing to do is to filter out a large amount of suspended matter contained in the wastewater through a fence or screen, which can reduce the content of suspended matter, reduce the amount of chemicals added, and save costs. Then add the fully dissolved polyaluminum chloride solution to the sewage, and then add the cationic polyacrylamide solution. The combination of the two can effectively remove suspended solids, part of ammonia nitrogen and phosphorus in the water, and the COD content in the water is also significantly reduced. In the subsequent processing, the processing difficulty will be greatly reduced.
For dewatered sludge, cationic polyacrylamide can be selected by flocculants of different ions after a small trial to select a more suitable polyacrylamide model and dosage, so that it can obtain better results and reduce the amount of Medicine dosage and cost saving.
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