Reclaimed water reuse is an effective way to save water resources, usually by treating all kinds of production and domestic wastewater and reusing it in other fields. Through reclaimed water reuse, the consumption of freshwater resources can be reduced, the pressure of water scarcity can be alleviated, and the environmental pollution caused by wastewater discharge can be reduced.
The methods used for water reuse in industry include physical, chemical, and biological treatment technologies. Through a series of precipitation, filtration, distillation, chemical reaction, microbial decomposition, etc., the suspended solids, macromolecular particulate matter, sulfides, heavy metal ions, organic matter and inorganic substances in industrial wastewater are separated and converted into reusable substances, and at the same time realize the best water resources.
With the advancement of technology, there are better ways to deal with water reuse in industry. The treatment process of "biochemical system effluent + regulating water tank + ultrafiltration system + sub-osmotic limit separation system" is a new technology for industrial reclaimed water reuse treatment that is currently being promoted. The main advantages of this treatment process are the continuity and stability of the operation.
The effluent of the industrial wastewater enters the regulating water tank through the biochemical system, and it is generally necessary to add a small amount of acid to adjust the pH value of the wastewater to reduce the risk of fouling the membrane separation system by the crystallization of scaling ions. The ultrafiltration system applies ultrafiltration membrane separation technology, which can separate all macromolecular and small molecule impurities and various organic and inorganic substances, and reduce the treatment burden for the sub-permeability limit separation system. The sub-permeability limit separation system further ensures that the water quality of the produced water meets the requirements of reclaimed water quality, and is an important process for a full set of industrial reclaimed water reuse treatment. On the whole, this industrial water reuse treatment technology has the advantages of strong resistance, high degree of automation, small footprint and low energy consumption.
After industrial reuse, it can be used for urban greening, car washing, road washing, and can also be reused for cleaning, cooling and cooling water in production and processing. All in all, water reuse in industry is an important technology to save water resources and production resources, and it deserves to be widely adopted.
Editor: Novelty Technique: Muzi.
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