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Bio-ecological combination method for effluent purification and reclamation and apparatus

A technology for ecological combination and sewage purification, applied in the field of devices of biological ecological combination method, can solve the problem of high TN concentration, and achieve the effects of low cost, optimized configuration and cost reduction

Active Publication Date: 2009-03-11
INST OF AQUATIC LIFE ACAD SINICA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although most of the indicators of the effluent can meet the direct reuse standard, the TN concentration is still too high

Method used

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  • Bio-ecological combination method for effluent purification and reclamation and apparatus
  • Bio-ecological combination method for effluent purification and reclamation and apparatus
  • Bio-ecological combination method for effluent purification and reclamation and apparatus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Embodiment 1 (as Figure 1-4 shown)

[0037] Adopt the method of this kind of bio-ecological sewage purification and reuse combination to process high-concentration sewage (main water quality indicators are shown in Table 1), and its steps are:

[0038] (1). The sewage 0 to be treated enters the grille / regulating tank A from the sewage inlet pipe 1.

[0039](2). Open the water outlet valve 8 of the grid / regulating tank A, open the water inlet valve 9 of the integrated membrane bioreactor (SMBR) B, close the water outlet bypass valve 33 of the grid / regulating tank A, and make the grid / The effluent from the adjustment tank A enters the unit B of the integrated membrane bioreactor (SMBR). The basic operating conditions of unit B of the integrated membrane bioreactor (SMBR) are: the concentration of activated sludge is 10.0±0.5g L -1 , the aeration rate is 6±0.5m 3 h -1 , the aeration / stop aeration time is 2h:0.5h, the pump suction / pause time is 4min:1min, the area ra...

Embodiment 2

[0061] Embodiment 2 (as Figure 1-Figure 4 shown)

[0062] The method for treating medium-concentration sewage (main water quality indicators are shown in Table 1) is treated by this kind of biological ecological sewage purification and reuse combination method, and its steps are the same as in Example 1.

[0063] Experimental results show that:

[0064] 1) During the plant growing season, control the hydraulic load of unit B of the integrated membrane bioreactor (SMBR) to 0.250m 3 / m 2 d, the hydraulic load of unit D of the composite vertical flow constructed wetland (IVCW) is 0.500m 3 / m 2 d; main indicators of effluent COD, TP, NH 3 -N can be stabilized within Class III of surface water, and TN reaches Class IV;

[0065] 2) In the non-growing season of plants, the hydraulic loads of the integrated membrane bioreactor (SMBR) B and the composite vertical flow constructed wetland (IVCW) D are controlled at 0.250m 3 / m 2 d, 0.375m 3 / m 2 When d, the main indicators of...

Embodiment 3

[0068] Embodiment 3 (as Figure 5 shown)

[0069] Adopt the method of this kind of bio-ecological sewage purification and reuse combination to process low-concentration sewage (main water quality indicators are shown in Table 1), and its steps are:

[0070] (1). The sewage 0 to be treated enters the grille / regulating tank A from the sewage inlet pipe 1.

[0071] (2). Open the outlet valve 8 of the grid / regulating tank, open the water inlet valve 9 of the integrated membrane bioreactor (SMBR), close the bypass valve 33 of the outlet water of the grid / regulating tank, so that the outlet of the grid / regulating tank A All enter the integrated membrane bioreactor (SMBR) B unit. The basic operating conditions of unit B of the integrated membrane bioreactor (SMBR) are: the concentration of activated sludge is 10.0±0.5g L -1 , the aeration volume is 6±0.5m 3 h -1 , the aeration / stop aeration time is 2h:0.5h, the pump suction / pause time is 4min:1min, the area ratio of the upflow a...

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Abstract

The invention discloses a method and a device for biological ecological assemblage for sewage purification and recycling. The method comprises the following steps: A. sewage to be treated passes through a grate / regulating reservoir, and large particulate materials are removed; B. the sewage treated in step A is pumped into an integral membrane bioreactor, and permeates a membrane when pumped by a pump; C. the sewage treated in step B flows into an intermediate water reservoir; and D. the sewage flowing out in step C enters into a composite vertical current manual wetland by graded means. The device comprises four units: the grate / regulating reservoir, the integral membrane bioreactor, the water reservoir and the composite vertical current manual wetland, wherein various units are connected through pipes and controlled by valves. Bypass pipes are arranged on outlets of the various units of the grate / regulating reservoir, the integral membrane bioreactor, the water reservoir and the composite vertical current manual wetland, and combined modes of series connection, shunt connection and parallel connection of the integral membrane reactor and the composite vertical current manual wetland are realized by adjusting valves, so that the method is easy, is simple and convenient to operate, has high operation efficiency and low cost, and realizes sewage purification and direct recycling.

Description

technical field [0001] The invention belongs to the technical field of water treatment, and more specifically relates to a biological ecological combination method for sewage purification and reuse, and also relates to a device for the biological ecological combination method of sewage purification and reuse, which is suitable for sewage treatment with direct reuse. Background technique [0002] Efficient and cheap sewage treatment process is an important link to promote sewage prevention and recycling. The continuous emergence of various new sewage treatment technologies has greatly prospered the sewage treatment market, but a single sewage treatment technology is difficult to meet the needs of different water quality and different treatment requirements. At present, there is no sewage treatment technology that can simultaneously To remove all pollutants in sewage, the combination and optimization of various technical processes is an inevitable trend to solve this problem....

Claims

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Application Information

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IPC IPC(8): C02F3/12C02F1/44
CPCY02W10/10
Inventor 吴振斌肖恩荣贺锋成水平
Owner INST OF AQUATIC LIFE ACAD SINICA
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