Anaerobic biological oxidation water pollution remediation method with Fe3+ in hematite as electron acceptor

An electron acceptor, anaerobic biological technology, applied in the field of water pollution remediation, can solve the problems of insufficient chemical properties, insufficient distribution, poor feasibility, etc., and achieves the effects of good application prospects, low cost, and convenient operation.

Inactive Publication Date: 2016-09-21
CHINESE RES ACAD OF ENVIRONMENTAL SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, these substances or chemical properties are not stable enough, or they are not widely distributed in nature. Thes

Method used

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  • Anaerobic biological oxidation water pollution remediation method with Fe3+ in hematite as electron acceptor
  • Anaerobic biological oxidation water pollution remediation method with Fe3+ in hematite as electron acceptor
  • Anaerobic biological oxidation water pollution remediation method with Fe3+ in hematite as electron acceptor

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Experimental program
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Effect test

Embodiment 1

[0034] Taking the late-stage landfill leachate of a city in Beijing as the treatment object, the COD concentration is about 600mg / L, the pH is 8.30, the ORP is -436mV, and the EC is 24.4mS / cm after appropriate dilution.

[0035] Use the method of the present invention to process, specifically:

[0036] 1) Activation and domestication of the functional bacteria species Geobacter sulfurreducens and Shewanella spp.;

[0037] The medium for cultivating the functional microorganisms includes: 0.535g / L NH 4 Cl, 0.136g / L KH 2 PO 4 , 0.204g / L MgCl 2 ·6H 2 O, 0.147g / L CaCl 2 2H 2 O, 2.52g / L NaHCO 3 , 0.82g / L CH 3 COONa, 0.735g / L ferric citrate, 1mL / L trace element mixed solution, and 1mL / L vitamin mixed solution; the trace element mixed solution includes 0.1g / L CoCl 2 ·6H 2 O, 0.425g / L MnCl 2 4H 2 O, 0.05g / L ZnCl 2 , 0.01g / L NiCl 2 ·6H 2 O, 0.015g / L CuSO 4 ·5H 2 O, 0.01g / L Na 2 MoO 4 2H 2 O and 0.01g / L Na 2 SeO 4 2H 2 O; the mixed solution of vitamins is a mixed ...

Embodiment 2

[0045] Taking a synthetic groundwater as the treatment object, the main characteristic pollutant is ammonia nitrogen, and its initial concentration is 16mg N L -1 .

[0046] Use the method of the present invention to process, specifically:

[0047] 1) Activation and domestication of the functional bacteria species Geobacter sulfurreducens and Shewanella spp.;

[0048] The medium for cultivating the functional microorganisms includes: 0.535g / L NH 4 Cl, 0.136g / L KH 2 PO 4 , 0.204g / L MgCl 2 ·6H 2 O, 0.147g / L CaCl 2 2H 2 O, 2.52g / L NaHCO 3 , 0.82g / L CH 3 COONa, 0.735g / L ferric citrate, 1mL / L trace element mixed solution, and 1mL / L vitamin mixed solution; the trace element mixed solution includes 0.1g / L CoCl 2 ·6H 2 O, 0.425g / L MnCl 2 4H 2 O, 0.05g / L ZnCl 2 , 0.01g / L NiCl 2 ·6H 2 O, 0.015g / L CuSO 4 ·5H 2 O, 0.01g / L Na 2 MoO 4 2H 2 O and 0.01g / L Na 2 SeO 4 2H 2 O; the mixed solution of vitamins is a mixed solution of vitamins B1, B2 and B5; wherein the mass r...

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Abstract

The invention discloses an anaerobic biological oxidation water pollution remediation method with Fe3+ in hematite as an electron acceptor. According to the method, Fe3+ in hematite serves as the electron acceptor and is loaded with functional microbial florae, and reduction-state pollutants in water are subjected to oxidation removal in the anaerobic or anoxic environment, wherein functional microorganisms include Geobacter sulfurreducens and Shewanella spp.. The method is wide in application range, low in cost, ideal in effect and especially suitable for remediating polluted water with high remediation difficulty.

Description

technical field [0001] The present invention relates to a kind of water pollution remediation technology, more specifically relate to a kind of Fe in hematite 3+ Anaerobic biological oxidation water pollution remediation method for electron acceptor. Background technique [0002] The traditional water pollution remediation technology remediates groundwater through artificial aeration, advanced oxidation technology or adding synthetic purification materials, and its investment, operation and maintenance costs are relatively high. Therefore, it is of great significance to screen out natural electron acceptors suitable for anaerobic biological oxidation remediation technology of water pollution, and to develop economical, effective and feasible anaerobic biological oxidation remediation technology. [0003] The oldest life process - microbial anaerobic oxidation, can make water pollution oxidation repair technology no longer need artificial aeration, dosing of oxidants (Fenton...

Claims

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Application Information

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IPC IPC(8): C02F3/34C02F3/28C02F103/06
CPCC02F3/2806C02F3/341C02F2103/06C02F2305/06
Inventor 席北斗李瑞龚斌赵颖姜玉宋赛虎崔东宇党秋玲
Owner CHINESE RES ACAD OF ENVIRONMENTAL SCI
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