CN1234626C - Process for comprehensively treating high-concentration water organic water - Google Patents

Abstract

The present invention relates to a method for comprehensive treatment of high-concentration organic wastewater, which comprises first-stage treatment and second-stage treatment. The present invention is characterized in that the first-stage treatment adopts a high-efficiency solid object blocking device; the second-stage treatment combines a physicochemical treatment technique (abbreviated SUN-SEP) of chemical coagulation of free radical oxidation with an 80-bacterium no-sludge biological-treatment sewage technique (abbreviated BMS). The high-concentration organic wastewater has the processing procedure that the high-concentration organic wastewater firstly enters the high-efficiency solid object blocking device and enters the SUN-SEP stage after the impurity substances are intercepted; finally, water is processed by the BMS and flows out. A no excess sludge treatment device of the system solves the problems of foreign odor in the traditional treatment methods and sludge blockage in the process of biological treatment and is used for treating the excess sludge. The present invention can be used for treatment of high-concentration organic wastewater with the high concentration of SS.

Description

A kind of integrated conduct method of high concentrated organic wastewater

Technical field: the present invention relates to a kind of treatment process of sewage, particularly a kind of integrated conduct method that contains the high high concentrated organic wastewater of SS concentration.

Background technology: containing the normal conventional treatment method that adopts of the higher high concentrated organic wastewater of SS concentration at present is that coagulant precipitation or coagulation air-float are handled as one-level, anaerobism (hold concurrently oxygen), aerobic (AO) method are as the conventional treatment method of second-stage treatment, the problem that exists has: (one) one-level is handled 1. solid-liquid separating method plant machineryization, integrated degree is low, and solid-liquid treatment effect and treatment process rely on the physical method treatment effect general.2. power consumption and medicament administration amount are big, and effective rate of utilization is low.(2) 1. technology is loaded down with trivial details for second-stage treatment, complex management; The unusual phenomenon that is prone in service, mud handling capacity is big, and the treatment system residence time is long.2. floor space is big, investment and running cost height.3. treating processes has foreign odor, and the environmental health condition is poor.Chinese patent ZL97105747 has introduced a kind of " method for the treatment of city waste water ", is to utilize chlorine to carry out sewage disposal, has the defective of narrating previously equally.

Summary of the invention: the object of the present invention is to provide a kind of system automation degree height, management is simple, and floor space is little, and investment and running cost are lower, and the processing efficiency height especially is fit to contain the process for comprehensively treating sewage of the high high-concentration organic industrial waste water of SS concentration.

The object of the present invention is achieved like this: a kind of integrated conduct method of high concentrated organic wastewater, comprise one-level processing and second-stage treatment, it is characterized in that one-level processing employing solid formation efficiently blocks a year device, to be materialization treatment technology (be called for short SUN-SEP) that coagulation is added the hydroxy radical qiao oxidation do not have the sludge organism technology (abbreviation BMS) of disposing of sewage with more than 80 kinds of floras to second-stage treatment combines, the treatment scheme of high concentrated organic wastewater is: high concentrated organic wastewater at first enters solid formation and efficiently blocks a year device, enter the SUN-SEP stage behind the intercepting impurity, handle the back water outlet by the BMS bio-oxidation pond at last.High concentrated organic wastewater at first passes through gravity continuous conveyor filter, containing the suspended substance of a large amount of larger particles and floating matter and part SS in the high concentrated organic wastewater is trapped, trapped substance enters the solid formation collecting tank after the solid formation automatic collecting device is collected, enter BMS bio-oxidation equalizing tank after waste water dams after filtration.The SUN-SEP treatment step is: the water outlet of BMS bio-oxidation equalizing tank promotes with pump and enters the SUN-SEP wastewater treatment equipment, produces coagulation air-float, OH ^*The chemical oxidation of gold of hydroxy radical qiao, the solid formation scum silica frost that air supporting produces enters the solid formation collecting tank through scraping automatically after slag system is collected.The SUN-SEP water outlet enters four lattice branch ponds of BMS bio-oxidation pond successively, all load material and efficient little aeration tube in the pond, treatment step is: a, fermentation vat: the SUN-SEP water outlet enters fermentation vat, utilizes more than the 80 kind of microorganism species of cultivating, and reduces BOD and COD in the water; B, decomposing pool: the fermentation vat water outlet enters decomposing pool, utilizes liquid biological agent, cultivates surging bacterial classification, decomposes and eliminates fermented material and harmful mushroom; C, digester: the decomposing pool water outlet enters digester, cultivates coccus by reconciling, and various corruption things of digestion and bacillus eat; D, outlet sump: after the digester water outlet entered outlet sump, further aeration biochemical was handled the back discharging.

The invention has the beneficial effects as follows: one-level processing employing advanced technology, the solid formation device for trapping that level of automation is high, interception efficient height, the solid formation water ratio is low, can save the first heavy equipment in the conventional process system, and investment of solid formation treatment system and running cost are low; Equalizing tank function uniqueness, flexibility of operation is strong, and the stronger ballistic ability of alleviation water quality and quantity is arranged, and the biochemical action of special flora can effectively suppress and remove the foreign odor in the one-level processing in the facultative equalizing tank.The BMS biological treatment system does not have excess sludge discharges, so a whole set of technology need not to be provided with the excess sludge treatment unit.The treatment process advanced technology, stable and reliable operation, processing efficiency height.The BMS biological treatment system adopts advanced biologic treating technique, and the biotic population of specific culture, and the three-phase fluidization bio-reactor of special research and development make the system handles effect, and particularly the denitrogenation dephosphorizing effect obviously is better than traditional bioremediation; Adopt excellent inflation technology, the ultramicro air bubble of generation makes system that higher oxygen transfer efficiency and coefficient of oxygen utilization be arranged, and reduces the energy consumption of system.The BMS biological treatment system is stable, and phenomenon such as sludge bulking or sludge blockage in the traditional biological treating processes can not take place, and convenient operation and management, need not to be provided with the personal management, and power consumption is economized, running cost cheap (be traditional biological processing cost 1/3).Adopt the technology of the present invention, through proving repeatedly, after the actual motion test, prove that this combination technique is best to handling high concentrated organic wastewater, its treatment effect and cost of investment are starkly lower than traditional treatment method.The process treatment process odorless, tasteless, the environmental health condition is good, and traditional biological is handled and can't be compared.Technological process apparatus flow process compactness, the integrated degree height, floor space is little.

Embodiment: embodiment: a kind of integrated conduct method of high concentrated organic wastewater, comprise one-level processing and second-stage treatment, the one-level processing is adopted efficient solid formation to block and carried a device is gravity continuous conveyor filter, to be materialization treatment technology (be called for short SUN-SEP) that coagulation is added the hydroxy radical qiao oxidation do not have the sludge organism technology (abbreviation BMS) of disposing of sewage with more than 80 kinds of floras to second-stage treatment combines, the treatment scheme of high concentrated organic wastewater is: high concentrated organic wastewater at first enters gravity continuous conveyor filter, enter the SUN-SEP stage behind the intercepting impurity, handle the back water outlet by the BMS bio-oxidation pond at last.

High concentrated organic wastewater at first passes through gravity continuous conveyor filter, containing the suspended substance of a large amount of larger particles and floating matter and most of SS in the high concentrated organic wastewater is trapped, trapped substance enters the solid formation collecting tank after the solid formation automatic collecting device is collected, enter the balanced water quality and quantity of BMS bio-oxidation equalizing tank after sewage dams after filtration.The water outlet of BMS bio-oxidation equalizing tank promotes with pump and enters the SUN-SEP waste disposal plant, by coagulation air-float, and OH ^*The chemical oxidation of hydroxy radical qiao, COD can be from 10,000 mg.L ^-1About reduce to 1500-500mg.L ^-1About.The solid formation scum silica frost that air supporting produces enters the solid formation collecting tank through scraping automatically after slag system is collected.The water outlet of SUN-SEP system enters the BMS system.Bio-oxidation pond is made up of four lattice in the BMS system, wherein #1, #2, #3, #4 are the three-phase fluidization biological contact oxidation pond that special flora forms, be called the BMS fermentation vat, BMS decomposing pool, BMS digester, the BMS outlet sump, filling material and efficient little aeration tube in each pond by the setting of aeration tube position and the design of aeration rate, make the anaerobism that produces different ratios in the pond, hold concurrently oxygen, aerobic zone, form the process of A/A/O, can effectively improve the ability of system's anti-current-rush load and organic impact load.The BMS fermentation vat utilizes special medium to set up different ecotopes, allows multiple flora symbiotic co-existence, unwanted bacteria, and virus can't be survived and mass mortality, and the material of poisonous easy generation smell is decomposed by special bacterial classification, and microbial fermentation reduces BOD and COD in the water.The BMS decomposing pool utilizes liquid biological agent, cultivates surging bacterial classification, sets up particular surroundings, and fermented material and harmful mushroom are in this elimination that is decomposed.The BMS digester is cultivated coccus by reconciling, and eat various corruption things of digestion and bacillus be not so produce mud.By above three biochemistry pools, easily biodegradable organics and biological degradation time, long organism was effectively resolved into stable inorganic substance rapidly, this process, odorless, tasteless, there is not mud to produce, sewage is through the biochemical treatment process of #1, #2, #3 A/A/O repeatedly, and organism is decomposed rapidly to be removed; H ₂S, NH ₃Suppressed by special flora and eliminates Deng the material that easily produces foreign odor, the nitrogen in the organic nitrogen compound removes behind nitrated-denitrification, and most of organophosphorus decomposes generation PH through special bacterium ₃Overflow, the digester water outlet is through the #4 pre-treatment of releasing, and further aeration biochemical is handled, with strictness control discharging water quality and the raising system adaptive faculty to load variations.System adopts run by gravity.Discharge behind the little aeration of outlet sump, water outlet reaches emission standard, can be used for field irrigation, greening water, road wash water.

Claims (4)

1, a kind of integrated conduct method of high concentrated organic wastewater, comprise one-level processing and second-stage treatment, it is characterized in that the efficient solid formation of one-level processing employing blocks a year device, second-stage treatment is the materialization treatment technology that coagulation adds the hydroxy radical qiao oxidation not to be had the sludge organism technology of disposing of sewage with more than 80 kinds of floras combine, the treatment scheme of high concentrated organic wastewater is: high concentrated organic wastewater at first enters efficient solid formation and blocks a year device, enter the SUN-SEP stage behind the intercepting impurity, handle the back water outlet by the BMS bio-oxidation pond at last.

2, the integrated conduct method of a kind of high concentrated organic wastewater according to claim 1, it is characterized in that it is gravity continuous conveyor filter that described efficient solid formation blocks a year device, high concentrated organic wastewater at first passes through gravity continuous conveyor filter, containing the suspended substance of a large amount of larger particles and floating matter and part SS in the high concentrated organic wastewater is trapped, trapped substance enters the solid formation collecting tank after the solid formation automatic collecting device is collected, enter BMS bio-oxidation equalizing tank after waste water dams after filtration.

3, the integrated conduct method of a kind of high concentrated organic wastewater according to claim 1 is characterized in that described SUN-SEP treatment step is: the water outlet of BMS bio-oxidation equalizing tank promotes with pump and enters the SUN-SEP wastewater treatment equipment, by coagulation air-float, and OH ^*The chemical oxidation reaction process of hydroxy radical qiao, pollution substance is removed, and the solid formation scum silica frost that air supporting produces enters the solid formation collecting tank through scraping automatically after slag system is collected.

4, the integrated conduct method of a kind of high concentrated organic wastewater according to claim 1 is characterized in that the SUN-SEP water outlet enters four lattice branch ponds of BMS bio-oxidation pond successively, all loads material and efficient little aeration tube in the pond, and treatment step is:

A, fermentation vat: the SUN-SEP water outlet enters fermentation vat, utilizes more than the 80 kind of microorganism species of cultivating, and reduces BOD and COD in the water;

B, decomposing pool: the fermentation vat water outlet enters decomposing pool, utilizes liquid biological agent, cultivates surging bacterial classification, decomposes and eliminates fermented material and harmful mushroom;

C, digester: the decomposing pool water outlet enters digester, cultivates coccus by reconciling, and various corruption things of digestion and bacillus eat.

D, outlet sump: after the digester water outlet entered outlet sump, further aeration biochemical was handled the back discharging.