High-ammonia-nitrogen wastewater treatment method
A technology for wastewater treatment and high ammonia nitrogen, applied in water/sewage multi-stage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc. problems, to ensure continuity and stability, to achieve automatic control, easy management and maintenance.
Active Publication Date: 2013-10-30
贵州绿色环保设备有限公司 +1
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Its disadvantages are as follows: first, the process of treating high ammonia nitrogen wastewater is immature, not resistant to impact load, operation control is difficult, and it is difficult to achieve the purpose of treatment; second, the wastewater contains a certain concentration of petroleum, which will affect the subsequent treatment without pretreatment. The treatment process has a fatal impact; third, the nitrification and denitrification effects of this method are not ideal, especially the low removal rate of TN
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[0008] As shown in the process flow chart, a method for treating high ammonia nitrogen wastewater is composed of a mechanical grid tank, a grease trap, a regulating tank, a carbon source tank, a high-efficiency combined air flotation, a CASS reactor, a Roots blower, and a CASS reflux Pump, intermediate tank, MBBR contact oxidation tank, secondary settling tank, alkali tank, monitoring tank, accident tank, sludge collection tank and sludge filter press system, supplemented by pH, COD, NH 3 -N, liquid level gauge, MLSS, DO, ORP online monitor, the high ammonia nitrogen wastewater under normal production conditions comes from the production wastewater of each process in the production device area, and first flows through the mechanical grid tank to remove large floating objects and larger particles, so as not to affect the subsequent processing equipment; then enter the grease trap for preliminary oil removal, set an oil decanter in the grease trap, and decant the floating oil; th...
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A high-ammonia-nitrogen wastewater treatment method adopts a mechanical grating groove, an oil separation tank, a regulating reservoir, a carbon source tank, efficient combined floatation, a CASS (Commanded Active Sonobuoy System) reactor, a Roots blower, a CASS reflux pump, a middle pond, an MBBR (Moving Bed Biofilm Reactor) contact oxidation pond, a secondary sedimentation tank, an alkali tank, a monitoring pool, an accident pool, a silt pool and a silt filter system. The high-ammonia-nitrogen wastewater treatment method adopts on-line pH (Potential of Hydrogen), COD (chemical oxygen demand), NH3-N (ammonia nitrogen),, MLSS (Mixed Liquor Suspended Solids), DO (Dissolved Oxygen) and ORP (Oxidation Reduction Potential) monitors and a liquid indicator as supplements. The treatment method mainly aims at pollutants including organics of NH3-N, TN, COD (BOD5) (Biochemical Oxygen Demand 5), SS (suspended solids) and oil type pollutants. The pretreatment on the oil type pollutants and the SS is conducted in a way of oil separation and floatation. The principle of removing the NH3-N by a biochemical method is that nitration and denitrification are conducted through a two-stage biochemical treatment process, the ammonia nitrogen is converted to nitrite nitrogen and nitrate nitrogen by the nitration, then a carbon source is supplied to conduct the denitrification so as to convert the nitrate nitrogen to nitrogen, and therefore, denitrification in a true sense is achieved. The high-ammonia-nitrogen wastewater treatment method can be applied to treatment of industrial wastewater containing methyl alcohol, synthesis ammonia, urea, ammonium nitrate, carbonic acid hydrogenous amine and the like.
Description
technical field [0001] The invention relates to a method for treating waste water, in particular to a method for treating high ammonia nitrogen waste water. Background technique [0002] The existing popular treatment method is to set up regulating pool + anoxic pool + aerobic pool (biological filter / contact oxidation) + monitoring pool to treat high ammonia nitrogen wastewater. Its disadvantages are as follows: first, the process of treating high ammonia nitrogen wastewater is immature, not resistant to impact load, operation control is difficult, and it is difficult to achieve the purpose of treatment; second, the wastewater contains a certain concentration of petroleum, which will affect the subsequent treatment without pretreatment. The treatment process has a fatal impact; third, the nitrification and denitrification effects of this method are not ideal, especially the low removal rate of TN. Contents of the invention [0003] The purpose of the present invention i...
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IPC IPC(8): C02F9/14
Inventor 潘家兴杨昌力尚凯吴翔
Owner 贵州绿色环保设备有限公司