Low-cost resource utilization method of industrial wastewater
A low-cost technology for industrial wastewater, applied in chemical instruments and methods, aerobic process treatment, anaerobic digestion treatment, etc. The effect of enterprise water cost, short wastewater treatment process and reduced treatment cost
Inactive Publication Date: 2016-05-18
HANDAN AOBO WATER TREATMENT
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Problems solved by technology
Sewage is either reprocessed or discharged into natural water bodies, causing great waste
At the same time, scaling and corrosion often occur in circulating water equipment, resulting in reduced service life of equipment and increased maintenance costs
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[0025] The invention provides a low-cost resource utilization method of industrial waste water. The industrial waste water is directly used as supplementary water for circulating cooling water after simple pretreatment, and the pollutants in the waste water are obtained by combining physical treatment and chemical treatment. Thoroughly degraded to achieve resource utilization and zero discharge of waste water, and achieve multiple effects such as 100% non-scaling and non-corrosion of circulating water equipment.
[0026] The method of the present invention will be further described below.
[0027] A low-cost resource utilization method for industrial wastewater, which collects various industrial wastewater into the adjustment tank of the sewage treatment plant and mixes them for simple pretreatment: adjust the pH value to 5.0-10.0, keep the water temperature below 30°C, remove floating oil and turbidity When the temperature drops below 100NTU, it can be used as supplementary w...
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The invention relates to the technical field of industrial wastewater treatment and particularly discloses a low-cost resource utilization method of industrial wastewater. After the industrial wastewater is simply pretreated, the industrial wastewater is taken as supplementary water for an industrial recycling cooling water system; the supplementary water has an anaerobic reaction and an aerobic reaction in the circulating process of the industrial recycling cooling water system, and control is performed by adjusting the retained water volume and the circulating water flow of the system; a scale and corrosion inhibitor, a corrosion inhibition prefilming agent and a germicide and algicide slime stripping agent are added regularly to the circulating water of the industrial recycling cooling water system. According to the method, the industrial wastewater is treated and taken as supplementary water for the industrial recycling cooling water, low-cost treatment and resource utilization of the industrial wastewater are realized by utilizing the industrial recycling cooling water system, the industrial wastewater treatment cost and the use amount of clean water for circulation of cooling water are greatly reduced, and the phenomena of scaling and corrosion of circulating water equipment are avoided.
Description
technical field [0001] The invention relates to the technical field of industrial wastewater treatment. Background technique [0002] At present, the most advanced waste water resource utilization methods at home and abroad are: waste water is pretreated, biochemically treated, super-oxidized, membrane treated, multi-effect evaporated, crystallized and separated to achieve zero discharge of waste water and reuse of pure water. However, its disadvantages are also obvious: huge investment in equipment and high energy consumption. Therefore, many small and medium-sized enterprises are discouraged and unable to adopt it. Therefore, there is an urgent need for a low-cost method for treating industrial wastewater. [0003] At the same time, circulating cooling water is a major part of industrial water consumption. It must discharge a certain amount of concentrated water and replenish a certain amount of new water during operation. The commonly used supplementary water for indust...
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Patent Timeline
Login to View More IPC IPC(8): C02F9/14
CPCC02F9/00C02F1/50C02F1/66C02F3/02C02F3/28C02F5/08C02F2303/04C02F2303/08C02F2303/22
Inventor 董兆祥
Owner HANDAN AOBO WATER TREATMENT