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Two-stage mbbr device for removing carbon, nitrogen and sulfur in pharmaceutical wastewater and method for using it to treat pharmaceutical wastewater

A pharmaceutical wastewater, carbon and nitrogen technology, applied in multi-stage water treatment, sulfur preparation/purification, special compound water treatment, etc. Highly resistant to toxic effects

Active Publication Date: 2018-01-23
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the problems of complex process, high operation cost and low treatment efficiency in the prior art for removing carbon, nitrogen and sulfur in pharmaceutical wastewater, and the problem that MBBR is used for the harsh operating conditions of pharmaceutical wastewater treatment, and to provide a two-stage MBBR device for removing carbon, nitrogen and sulfur in pharmaceutical wastewater and method for using it to treat pharmaceutical wastewater

Method used

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  • Two-stage mbbr device for removing carbon, nitrogen and sulfur in pharmaceutical wastewater and method for using it to treat pharmaceutical wastewater
  • Two-stage mbbr device for removing carbon, nitrogen and sulfur in pharmaceutical wastewater and method for using it to treat pharmaceutical wastewater
  • Two-stage mbbr device for removing carbon, nitrogen and sulfur in pharmaceutical wastewater and method for using it to treat pharmaceutical wastewater

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specific Embodiment approach 1

[0029] Embodiment 1: The device for removing carbon, nitrogen and sulfur in pharmaceutical wastewater by two-stage MBBR in this embodiment includes a pool body 1, a water inlet 2, an anoxic MBBR pool 3, an aerobic MBBR pool 4, an overflow weir 5, and an overflow screen Net 6, sump 7, drainage pipe 8, diversion pipe 9, reflection plate 10, sedimentation tank 11, sedimentation tank drainage pipe 12, partition wall 13, screen mesh 14, filler 15, biogas vent 16, water seal Bottle 17, biogas purification device 18, CH 4 Collection device 19, micro-oxygen aerator 20, anoxic gas flowmeter 21, aerobic gas flowmeter 22, blower 23, anoxic solenoid valve 24, quartz sand composite filter bed 26, elemental sulfur separation device 27, sludge reflux Pump 28, mud pump 30, aerobic solenoid valve 31, aerobic aerator 32 and water outlet 33;

[0030] Pool body 1 is separated into anoxic MBBR pool 3 and aerobic MBBR pool 4 by partition wall 13, water inlet 2 is set at the side wall upper end of ...

specific Embodiment approach 2

[0031] Specific embodiment two: the present embodiment utilizes the two-stage MBBR described in specific embodiment one to remove the method for the device processing pharmaceutical wastewater of carbon, nitrogen and sulfur in the pharmaceutical wastewater, specifically according to the following steps:

[0032] 1. Inoculation acclimatization: first inoculate the anoxic inoculation sludge in the anoxic MBBR pool 3, then fill the anoxic MBBR pool 3 with filler 15, and the dosage of the filler 15 in the anoxic MBBR pool 3 is the anoxic MBBR pool 3 Two-thirds of the effective volume, inoculate the aerobic inoculated sludge in the aerobic MBBR pool 4, and then fill the aerobic MBBR pool 4 with filler 15, and the dosage of filler 15 in the aerobic MBBR pool 4 is preferably Two-thirds of the effective volume of the oxygen MBBR pool 4, and then inject pharmaceutical wastewater into the anoxic MBBR pool 3 through the water inlet 2, and then the pharmaceutical wastewater flows into the ...

specific Embodiment approach 3

[0041] Specific embodiment three: The differences between this embodiment and specific embodiment two are: the COD concentration in the pharmaceutical wastewater described in steps 1, 2 and 3 is 3000 mg / L to 5000 mg / L, and the sulfate radical load is 1 kg / m 3 ·d~2kg / m 3 d, the nitrate volume load is 0.5kg / m 3 ·d~1kg / m 3 d. Others are the same as in the second embodiment.

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Abstract

The invention discloses a device for removing carbon, nitrogen and sulfur in pharmaceutical wastewater through two MBBRs (moving bed bio-film reactors) and a method utilizing the device to treat the pharmaceutical wastewater, relates to a pharmaceutical wastewater treating device and method and aims at solving the problem that the prior art for removing carbon, nitrogen and sulfur in the pharmaceutical wastewater is complex in process, high in running cost and low in treating efficiency and the problem that the MBBRs have strict operation condition requirements when being used for pharmaceutical wastewater treating. The device comprises an anoxic MBBR pool, an aerobic MBBR pool, an air blower, a precipitation pool, a water sealing bottle, a biogas purifying device, a CH4 collecting device, a microaerobic aerator, a quartz sand composite filter bed, an elemental sulfur separating device and an aerobic aerator. The method includes: 1, inoculation and domestication; 2, starting; 3, water treatment: micro-oxidation, oxidation, precipitation, purification and gas collection. The device and the method are mainly used for treating carbon, nitrogen and sulfur in the pharmaceutical wastewater.

Description

technical field [0001] The invention belongs to the field of pharmaceutical wastewater treatment, and in particular relates to a pharmaceutical wastewater treatment device and a treatment method. Background technique [0002] With the rapid development of my country's pharmaceutical industry, a large amount of organic wastewater containing sulfur and nitrogen is discharged into the receiving water body. Nitrogen-containing compounds can accelerate the proliferation of algae and other aquatic organisms, trigger eutrophication of water bodies, and cause algal blooms, red tides and other phenomena. Sulfur-containing compounds can be reduced to sulfide by microorganisms under anaerobic conditions, which not only causes biological corrosion, but also produces toxic and harmful hydrogen sulfide gas, which brings great harm to people's production and life. Therefore, it is very necessary and urgent to develop efficient and low-cost effective treatment methods for organic wastewate...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/14C01B17/02C12P5/02C12P3/00
CPCC01B17/0205C02F1/52C02F3/1268C02F3/2853C02F9/00C02F2101/101C02F2101/16C02F2101/163C02F2301/08C02F2305/06C12P3/00C12P5/023Y02E50/30
Inventor 丁杰刘先树吴高峰龚钰涵王光远
Owner HARBIN INST OF TECH
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