Lossless regeneration and recovery device of phosphorus of high phosphorus salt organic industrial wastewater and recovery process
A technology for industrial wastewater and regeneration devices, applied in the direction of inorganic chemistry, phosphorus compounds, water/sewage multi-stage treatment, etc., can solve problems such as unreachable, adverse effects of biological treatment units, etc., and achieve high operability
Inactive Publication Date: 2014-01-15
北京玻尔恩科技有限公司
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Problems solved by technology
Phosphorus is removed by discharging phosphorus-rich excess sludge, but its removal rate can only reach 30%-40% in general, and the single biological phosphorus removal method cannot reach the 0.5mg / L standard
Phosphorus removal by chemical method is to add one or several kinds of flocculants and coagulants to turn the phosphorus in the sewage into granular sludge, precipitate it, separate it, and then remove it. Adding a large amount of flocculants such as iron salt and aluminum salt can achieve discharge standards, but the large amount of iron salts and aluminum salts will inevitably have adverse effects on the biological treatment unit
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[0021] A non-destructive recovery and regeneration device for phosphorus in high phosphorus salt organic industrial wastewater, the device includes: a high mass transfer hydrolysis preconditioning tank 17, an electrocoagulation turbulent flow sedimentation tank 18, a limited aeration MBR tank 19 and a terminal reverse osmosis device.
[0022] The high mass transfer hydrolysis preconditioning pool 17 has a depth of 4m, and the hydraulic retention time is maintained at 4-6h. The water wall is set in the pool, and the pool body is divided into several compartments with increasing volume. Full of special shearing and turbulent flow modular packing 1, 7 compartments of sedimentation sloping plates are set at the end, high-phosphorus salt organic industrial wastewater churns up and down and flows through each compartment in turn, and the sludge at the bottom of each compartment flows back through the sludge discharge pipe 9 at regular intervals Collect at the top of the pool or drain...
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The invention provides a technology for recycling high phosphorus salt organic industrial wastewater and recovering phosphorus and comprises a high mass transfer hydrolysis presetting basin, an electric flocculation turbulence flow sedimentation basin, a limited aeration membrane bio-reactor (MBR) basin and a terminal reverse osmosis device which are connected successively. By strengthening the mechanisms of high efficient pre-degradation of organism-containing phosphorus, electric flocculation turbulence flow sedimentation, MBR basin limited aeration and the like, the high phosphorus salt organic industrial wastewater is subjected to denitriding and dephosphorization and regeneration to enable the water quality after the water is processed to meet the water quality standard of industrial recycling and losslessly recover and reuse the phosphorus in wastewater. The flocculate containing phosphorus obtained in the electric flocculation turbulence flow sedimentation basin can be used as agricultural slow-release phosphatic fertilizer to strengthen phosphorus releasing effect.
Description
technical field [0001] The invention belongs to the technical field of sewage treatment, and in particular relates to a non-destructive recovery device and recovery process for phosphorus in high-phosphorus salt organic industrial wastewater. Background technique [0002] With the rapid development of the economy, the phosphorus element on the land has continuously entered the social cycle through natural behavior and artificial mining, and finally flowed into the surface runoff and the ocean. The natural environment caused great trouble. At the same time, the massive loss of phosphorus, which is a nutrient component of the soil, also leads to barren soil and crop failure. It can be seen that the recycling and utilization of phosphorus in the soil is imperative. Once the high content of phosphorus and nitrogen in the high-phosphorus salt organic industrial wastewater enters the natural water body without treatment or unqualified treatment, the harm caused by it is unbearabl...
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IPC IPC(8): C02F9/14C01B25/00
Inventor 彭若梦陈晓强徐华
Owner 北京玻尔恩科技有限公司