Water treatment for aquaculture industry
Aquaculture sewage is a serious source of pollution in rural areas, which not only affects the growth of crops, but also pollutes soil and water sources, threatening human health. Kinglv Environmental Protection focuses on dispersing wastewater treatment and is very familiar with the treatment of aquaculture wastewater. The following is a brief introduction to the conventional treatment of aquaculture wastewater.
First of all, it is the preprocessing process. The source of aquaculture sewage should be inspected for the first time. The discharge of the cultured sewage is relatively large, and the internal organic matter is dissolved more. There are more solid substances in the interior, and the basic treatment is carried out by physical means such as filtration. Untreated pre-treatment sewage is likely to cause equipment blockage. In the pretreatment stage, physical methods and chemical methods are usually applied in combination.
When the pretreatment is completed, it can proceed to the next stage of anaerobic treatment. The anaerobic consumption process can precipitate most of the soluble organic matter in the water, which can directly treat the organic matter and kill some bacteria.
Only relying on anaerobic treatment can not achieve water quality standards. The organic matter in the water is aerobicly treated to combine with oxygen to form a new substance. Generally, the combination of oxygen will change the physical and chemical structure of the original organic substance, and become inorganic, most of which cannot be combined with water, settled or floated in water. And then through the biological filter pool for processing. The aerobic particles have a relatively large sedimentation degree, a relatively large biomass, and a relatively large organic load, and are easy to remove nitrogen and carbon.