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Method for recovering phosphorus from fosfomycin-containing wastewater

A waste water, mycotoxin technology, applied in the field of phosphorus recovery, can solve the problems of high energy consumption, increase the cost of phosphorus recovery, etc., and achieve the effect of promoting rapid formation

Active Publication Date: 2015-05-06
CHONGQING UNIV OF ARTS & SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, high temperature and high pressure conditions will undoubtedly make this technology require higher energy consumption. In addition, since the magnesium ammonium phosphate crystallization method requires sufficient magnesium sources, for inland areas lacking magnesium sources, this will inevitably increase the cost of phosphorus recovery.

Method used

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  • Method for recovering phosphorus from fosfomycin-containing wastewater
  • Method for recovering phosphorus from fosfomycin-containing wastewater
  • Method for recovering phosphorus from fosfomycin-containing wastewater

Examples

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Embodiment 1

[0044] (1) figure 1 It is the schematic diagram of the photocatalytic reaction device of the present invention, at first graphite anode 5 and stainless steel negative electrode 6 are connected in the photocatalytic reaction device that volume is 2L; Wherein, the light source of described photocatalytic reaction device is ultraviolet lamp 8, power supply It is a constant current power supply 7, the electrolyte is a NaCl aqueous solution with a mass fraction of 0.5%, and the stirring device is a mechanical stirring paddle 9;

[0045] (2) the reaction voltage that photoelectric catalytic reaction device is set is 5V, and promptly the voltage of constant current power supply 7 is 5V, and ultraviolet light source is 5W, and promptly the power of ultraviolet lamp 8 is 5W, and stirring speed 60r / min; Containing fosfomycin waste water The water quality is fosfomycin concentration 1mg / L, COD value 1000mg / L, pH=7.5; the fosfomycin-containing wastewater enters the reaction device from th...

Embodiment 2

[0048] (1) figure 1 It is the schematic diagram of the photocatalytic reaction device of the present invention, at first graphite anode 5 and stainless steel negative electrode 6 are connected in the photocatalytic reaction device that volume is 2L; Wherein, the light source of described photocatalytic reaction device is ultraviolet lamp 8, power supply It is a constant current power supply 7, the electrolyte is a NaCl aqueous solution with a mass fraction of 2%, and the stirring device is a mechanical stirring paddle 9;

[0049] (2) the reaction voltage that photoelectric catalytic reaction device is set is 10V, and promptly the voltage of constant current power supply 7 is 10V, and ultraviolet light source is 5W, and promptly the power of ultraviolet lamp 8 is 5W, and stirring speed 70r / min; Containing fosfomycin waste water The water quality is fosfomycin concentration 2mg / L, COD value 2000mg / L, pH=7.5; the fosfomycin-containing wastewater enters the reaction device from th...

Embodiment 3

[0052] (1) figure 1 It is the schematic diagram of the photocatalytic reaction device of the present invention, at first graphite anode 5 and stainless steel negative electrode 6 are connected in the photocatalytic reaction device that volume is 2L; Wherein, the light source of described photocatalytic reaction device is ultraviolet lamp 8, power supply It is a constant current power supply 7, the electrolyte is a NaCl aqueous solution with a mass fraction of 2%, and the stirring device is a mechanical stirring paddle 9;

[0053] (2) the reaction voltage of the photoelectric catalytic reaction device is set to be 15V, that is, the voltage of the constant current power supply 7 is 15V, and the ultraviolet light source is 5W, that is, the power of the ultraviolet lamp 8 is 5W, and the stirring speed 70r / min; The water quality is fosfomycin concentration 4mg / L, COD value 8000mg / L, pH=8.0; the fosfomycin-containing wastewater enters the reaction device from the water inlet 1 throu...

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Abstract

The embodiment of the invention discloses a method for recovering phosphorus from fosfomycin-containing wastewater. The method comprises the following steps: using a method of cooperating photoelectro-catalytic oxidation with hydroxyl calcium phosphate deposition; connecting a graphite anode and a stainless steel cathode into a photoelectro-catalytic reaction device, and taking an ultraviolet lamp as a light source, and an aqueous solution of NaCl as an electrolyte; and enabling the fosfomycin-containing wastewater to enter the reaction device while stirring, and pouring porous tobermorite into the reaction device, controlling a reaction voltage, temperature and time, monitoring water quality indexes in real time, and collecting a phosphorus recovery product after the reaction is finished. The process of recovering phosphorus disclosed by the invention is low in energy consumption and free from secondary pollution; moreover, the product after phosphorus recovery, namely hydroxyl calcium phosphate, can be used as a phosphatic fertilizer or a phosphorus-containing mineral for being used, thus realizing effective recovery for phosphorus resources while treating a polluted water quality.

Description

technical field [0001] The invention belongs to the field of environmental engineering water treatment, in particular to a method for recovering phosphorus from fosfomycin-containing wastewater. Background technique [0002] Phosphorus is one of the essential elements of all cells in an organism. Phosphorus is also an important component of adenosine triphosphate (ATP), the key substance of human genetic material nucleic acid and energy conversion, and plays a very important role in various life activities of humans, animals and plants. Phosphorus is mostly one-way flow in the biosphere, and it is a non-renewable and irreplaceable precious resource. However, the world's phosphate rock reserves will be depleted within the next hundred years. Therefore, how to effectively recover phosphorus resources from industrial or agricultural production has always been a hot issue at home and abroad. [0003] Fosfomycin is one of the most widely used antibiotics. Fosfomycin has good w...

Claims

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Application Information

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IPC IPC(8): C02F1/32C02F1/461C02F1/58
CPCC02F1/32C02F1/461C02F1/46104C02F1/58C02F2001/46133C02F2101/34C02F2103/343C02F2201/32C02F2201/4618
Inventor 谢志刚关伟王维勋
Owner CHONGQING UNIV OF ARTS & SCI
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