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Method utilizing natural manganese ore-microorganisms for co-treatment of micro pollutants difficult to degrade

A natural manganese ore and synergistic treatment technology, applied in biological water/sewage treatment, anaerobic digestion treatment, chemical instruments and methods, etc., to achieve the effects of easy operation, good removal effect, and improved reaction rate

Active Publication Date: 2014-06-11
CHONGQING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The purpose of the present invention is to propose a new method for the advanced treatment of sewage or drinking water that uses natural manganese ore and microorganisms to jointly treat refractory micro-pollutants for the problems existing in the existing refractory micro-pollutant treatment methods

Method used

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  • Method utilizing natural manganese ore-microorganisms for co-treatment of micro pollutants difficult to degrade

Examples

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Effect test

Embodiment 1

[0034] Example 1: Natural manganese ore-microbial synergistic treatment method for simulating medical wastewater containing carbamazepine (CBZ)

[0035]Medical wastewater has complex components, high relative concentration of pollutants, frequent changes in pH value, color and odor, high content of suspended solids, refractory substances and antibiotics with antibacterial effect, and toxicity. It belongs to concentration refractory organic wastewater.

[0036] According to the conditions and steps described in the technical scheme, for the treatment of medical wastewater containing 100ug / L carbamazepine (CBZ), first use NaOH or HCl to adjust the pH of the medical wastewater to 6.5~7.5, and take the flooded paddy soil and water Fully mix and filter to obtain the filtrate, while taking a part of carbamazepine (CBZ) pharmaceutical wastewater, in which Mn 4+ Pure manganese dioxide with a content of 15mmol / L, and then continuously pass the above-mentioned manganese-added carbamazep...

Embodiment 2

[0040] Example 2: Natural manganese ore-microbial co-processing method for simulating organic wastewater containing phenol

[0041] According to the conditions and steps described in the technical plan, for the treatment of medical wastewater containing 200mg / L phenol, first use NaOH or HCl to adjust the pH of the wastewater to 6.5~7.5, take the freshwater sediment and water, fully mix and filter to obtain the filtrate, At the same time, take a part of phenol medical wastewater, and add Mn 4+ Pure manganese dioxide with a content of 15mmol / L, and then continuously pass the above-mentioned phenol pharmaceutical wastewater with manganese addition into the filtrate at 30~35°C, and gradually increase its specific gravity until the concentration of microbial cells in the filtrate reaches 10 5 The obtained filtrate is added to the natural manganese ore filler in the anaerobic bioreactor as an inoculum, and the phenol pharmaceutical wastewater is passed into the reactor from the bott...

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Abstract

The invention belongs to the technical field of waste water treatment and relates to a method utilizing natural manganese ore-microorganisms for co-treatment of micro pollutants difficult to degrade. The method comprises the following steps: inputting waste water into a reactor through the bottom of the anaerobe reactor, enabling the waste water to pass through natural manganese ore filler where plenty of microorganisms grow in the process of the waste water flowing from bottom to top in the anaerobe reactor, enabling Mn4+ in the natural manganese ore to be taken as an electron acceptor in the process, enabling the micro pollutants difficult to degrade in the waste water to be taken as an electron donor, promoting electron transfer under the effect of the microorganisms (dissimilatory -Mn reducing bacteria), accordingly enabling the micro pollutants difficult to degrade to be degraded, and enabling water to flow out of the top of the anaerobe reactor. The method has the advantages that the process is simple, and the operation is easy; the adopted natural manganese ore resource is rich and low in price and regenerates easily, and outflow water does not cause secondary pollution; the energy consumption is low, and the water treatment cost is low, and the like.

Description

technical field [0001] The invention belongs to the technical field of wastewater treatment, and in particular relates to a method for synergistically treating refractory micro-pollutants with natural manganese ore and microorganisms. technical background [0002] With the development of society and economy, the types of refractory micro-pollutants and the amount of sewage are increasing. Refractory micro-pollutants mainly include sustainable pollutants (POPs), precursors of trihalomethanes (THMFP), endocrine disruptors pharmaceuticals (EDCs) and pharmaceuticals and personal care products (PPCPs). At present, the widely used micro-pollution treatment technologies mainly include activated carbon adsorption, biological activated carbon, biological pretreatment technology, membrane technology, ozone oxidation, photocatalytic oxidation, H 2 o 2 Advanced Oxidation Technology, etc. [0003] Among them, the activated carbon adsorption method can only remove some micro-pollutants...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/34C02F3/28
Inventor 翟俊何强陈妮张盛莉肖海文
Owner CHONGQING UNIV