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Method and device for disposing high-concentration organic wastewater by means of Fenton-SMAD-BBR

An organic wastewater, high-concentration technology, applied in sludge treatment, sedimentation treatment, multi-stage water treatment, etc., can solve the problems of difficult movement and control management, large equipment area, complex process, etc., to reduce Fenton pollution. Sludge production, reduced operating costs, simple and compact process

Active Publication Date: 2019-08-09
QINGDAO TECHNOLOGICAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the shortcoming existing in the prior art, seek to design a kind of high-concentration organic wastewater treatment method and its device, it solves the existing treatment process / device, the existing process is complex, the equipment occupies a large area, and is heavy , difficult to move and control management issues

Method used

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  • Method and device for disposing high-concentration organic wastewater by means of Fenton-SMAD-BBR
  • Method and device for disposing high-concentration organic wastewater by means of Fenton-SMAD-BBR
  • Method and device for disposing high-concentration organic wastewater by means of Fenton-SMAD-BBR

Examples

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Embodiment 1

[0025] Such as figure 1As shown, the Fenton-SMAD-BBR high-concentration organic wastewater treatment device that this embodiment relates to specifically includes an integrated Fenton oxidation tower 1, a self-mixing anaerobic reactor (SMAD) 2, and a diversion bioreactor (BBR) 3. Adjusting tank 4, sludge thickening tank 5 and centrifugal dehydrator 6, the supernatant outlet of the integrated Fenton oxidation tower 1 is connected with the inlet pipe of the self-mixing anaerobic reactor 2, and the outlet of the self-mixing anaerobic reactor 2 The water port is connected to the water inlet of the diversion bioreactor 3, and the sludge outlet at the bottom of the self-mixing anaerobic reactor 2 and the diversion bioreactor is connected to one end of the sludge thickening tank 5, and the other end of the sludge thickening tank 5 is connected to centrifugal dehydration Machine 6.

[0026] Such as Figure 2-4 As shown, the integrated Fenton oxidation tower (Fenton) 1 that the presen...

Embodiment 2

[0038] The device described in Example 1 was used to treat liquid crystal washing wastewater produced by a chemical company. High concentration washing wastewater water quality: COD Cr ≤150000mg / L, BOD 5 ≤80000mg / L, ammonia nitrogen ≤60mg / L, SS≤500mg / L, and the main pollutants in wastewater are dodecyl glucoside and ester DEHP which are difficult to biodegrade; low-concentration washing wastewater water quality: COD Cr ≤500mg / L, BOD 5 ≤200mg / L, ammonia nitrogen ≤30mg / L. The water quality requirements of the effluent meet the B-level standard in Table 1 of the "Water Quality Standards for Discharge of Sewage into Urban Sewers" (GB / T31962-2015), that is, COD Cr ≤500mg / L, BOD 5 ≤350mg / L, ammonia nitrogen ≤45mg / L, SS≤400mg / L.

[0039] The specific processing process includes the following steps:

[0040] (1) Collect high-concentration washing wastewater and low-concentration washing wastewater and enter the regulating tank. After mixing, the water quality of the wastewater: ...

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Abstract

The invention discloses a method and device for disposing high-concentration organic wastewater by means of Fenton-SMAD-BBR. The device specifically comprises an integrated Fenton oxidation tower, a self-mixing anaerobic reactor, a diversion bioreactor, an adjusting tank, a sludge concentration tank and a centrifugal dehydrator. A supernatant outlet of the integrated Fenton oxidation tower is communicated with a water inlet pipe of the self-mixing anaerobic reactor, a water outlet of the self-mixing anaerobic reactor is communicated with a water inlet of the diversion bioreactor, sludge outlets in the bottoms of the self-mixing anaerobic reactor and the diversion bioreactor are both communicated with one end of the sludge concentration tank, and the other end of the sludge concentration tank is connected with the centrifugal dehydrator. Wastewater is primarily degraded by the integrated Fenton oxidation tower, so that the biodegradability of the wastewater is improved; then, a combinedprocess of SMAD and BBR, which is improved on the basis of existing biochemical disposal processes, is adopted, so that the content of COD, BOD and ammonia nitrogen in the wastewater are reduced, SMAD and BBR are coordinated with each other to achieve a synergistic effect, and safe and harmless disposal of the organic wastewater is realized. The process is simple and compact, the capital construction area is saved, and management and transportation are facilitated.

Description

technical field [0001] The invention belongs to the technical field of wastewater treatment, and specifically relates to a device and method for effectively degrading high-concentration organic wastewater. The biodegradability of wastewater is improved through Fenton oxidation, and the wastewater is further improved through an improved biochemical reaction device (SMAD-BBR). The efficiency of wastewater treatment, the whole device occupies a small area, is easy to control, and is convenient for transportation. Background technique [0002] With the rapid development of my country's chemical industry, the chemical industry produces a large amount of organic pollutants in the production process. These pollutants enter the water body through various channels, causing the quality of the water environment to deteriorate and threatening the safety of human life. Chemical wastewater has the characteristics of large changes in water quality, poor biodegradability, and difficult to d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F11/121C02F11/127C02F101/30C02F101/34C02F101/16
CPCC02F9/00C02F11/12C02F11/127C02F1/725C02F1/722C02F1/66C02F3/301C02F3/2866C02F3/28C02F2101/34C02F2101/30C02F2001/007C02F2101/16C02F2301/08C02F2305/026Y02W10/10
Inventor 柳超钱彬杰王莉元肖传晶
Owner QINGDAO TECHNOLOGICAL UNIVERSITY