High-efficiency and energy-saving high-concentration sugarcane sugar production wastewater treatment process

A waste water treatment, high-efficiency and energy-saving technology, applied in natural water treatment, water/sewage treatment, water/sewage multi-stage treatment, etc., can solve the problem of microbial production and reproduction being greatly affected by external factors, increased energy consumption, and increased microbial decomposition burden, etc. question

Pending Publication Date: 2021-06-01
DONGGUAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the biological method is dependent on the action of microorganisms, the production and reproduction of microorganisms is greatly affected by external factors, and when the concentration of pollutants in the incoming water is high, the decomposition burden of microorganisms will be seriously increased, energy consumption will increase, and the treatment efficiency will be weakened

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A high-efficiency and energy-saving high-concentration sugar cane sugar wastewater treatment process, comprising the following steps:

[0032] The pollutant content of sugar wastewater influent water quality is: chemical oxygen demand COD is 11050mg / l, ammonia nitrogen content is 58.5mg / l, total phosphorus content is 18.0mg / l, and suspended solid content SS is 327mg / l.

[0033] (1) Pretreatment of sugar-making wastewater; sugarcane sugar-making wastewater passes through the grid to filter out large particles of suspended matter and floating matter, and the effluent of the grid enters the homogeneous pool for homogeneous treatment, and the effluent of the homogenized treatment enters the pretreatment pool and is sent to the pretreatment pool. Add sodium hydroxide powder to the pretreatment tank, adjust the pH to 7.0, and stir homogeneously; put in modified zeolite-Fe 3 o 4 Particles, adsorption treatment for 3h, pretreatment ends;

[0034](2) The pretreated effluent en...

Embodiment 2

[0045] A high-efficiency and energy-saving high-concentration sugar cane sugar wastewater treatment process, comprising the following steps:

[0046] The pollutant content of sugar wastewater influent water quality is: chemical oxygen demand COD is 11050mg / l, ammonia nitrogen content is 58.5mg / l, total phosphorus content is 18.0mg / l, and suspended solid content SS is 327mg / l.

[0047] (1) Pretreatment of sugar-making wastewater; sugarcane sugar-making wastewater passes through the grid to filter out large particles of suspended matter and floating matter, and the effluent of the grid enters the homogeneous pool for homogeneous treatment, and the effluent of the homogenized treatment enters the pretreatment pool and is sent to the pretreatment pool. Add sodium hydroxide powder to the pretreatment tank, adjust the pH to 7.3, stir homogeneously; put in modified zeolite-Fe 3 o 4 Particles, adsorption treatment for 3.5h, pretreatment ends;

[0048] (2) The pretreated effluent ent...

Embodiment 3

[0059] A high-efficiency and energy-saving high-concentration sugar cane sugar wastewater treatment process, comprising the following steps:

[0060] The pollutant content of sugar wastewater influent water quality is: chemical oxygen demand COD is 11050mg / l, ammonia nitrogen content is 58.5mg / l, total phosphorus content is 18.0mg / l, and suspended solid content SS is 327mg / l.

[0061] (1) Pretreatment of sugar-making wastewater; sugarcane sugar-making wastewater passes through the grid to filter out large particles of suspended matter and floating matter, and the effluent of the grid enters the homogeneous pool for homogeneous treatment, and the effluent of the homogenized treatment enters the pretreatment pool and is sent to the pretreatment pool. Add sodium hydroxide powder to the pretreatment tank, adjust the pH to 7.5, and stir homogeneously; put in modified zeolite-Fe 3 o 4 Particles, adsorption treatment for 4h, pretreatment ends;

[0062] (2) The pretreated effluent e...

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Abstract

The invention discloses an efficient and energy-saving treatment process for high-concentration sugarcane sugar production wastewater. The sugar production wastewater treatment process mainly comprises the following steps: (1) filtering out large-particle suspended solids and floating objects from sugarcane sugar production wastewater through a grating, adjusting the pH value to 7.0-7.5 by using sodium hydroxide powder, and carrying out adsorption treatment by using modified zeolite -Fe3O4 particles so as to obtain pretreated sugar production wastewater; (2) enabling the pretreated sugar production wastewater to sequentially enter an IC anaerobic reactor, an anoxic tank and a two-stage aerobic tank, and carrying out anaerobic and aerobic biochemical treatment to remove nitrogen and phosphorus in the wastewater; and (3) enabling effluent of the aerobic tank to enter a secondary sedimentation tank, carrying out mud-water separation, enabling separated water to enter a clean water tank to be discharged, enabling the separated sludge to enter a sludge return well, and subjecting the sludge in the sludge return well to concentration, dehydration and drying. The sugar production wastewater treated by the process is low in content of organic matters, suspended matters, nitrogen and phosphorus, and the method is high in wastewater treatment efficiency, low in process energy consumption and environmentally friendly.

Description

technical field [0001] The invention relates to the technical field of wastewater treatment, in particular to a high-efficiency, energy-saving, high-concentration sugarcane sugar wastewater treatment process. Background technique [0002] Sugar wastewater belongs to high-concentration organic wastewater. If it is directly discharged into the water body without proper treatment, it will easily cause eutrophication of the water body and a large number of algae growth, which will eventually lead to regional water environment pollution and affect and restrict the long-term development of the enterprise. The treatment of sugar wastewater is of great significance to the improvement of enterprise development and ecological environment. [0003] At present, there are few research reports on sugar cane wastewater, but there have been reports on the treatment of sugar beet and corn wastewater. In the prior art, the treatment of sugar beet and corn sugar organic wastewater mainly incl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F1/28C02F1/48C02F1/66C02F3/28C02F3/30C02F7/00C02F1/20C02F101/30
CPCC02F9/00C02F3/2873C02F1/66C02F3/30C02F2103/36C02F1/281C02F1/48C02F7/00C02F1/20C02F2101/30Y02W10/10
Inventor 何忠艳吕斯濠李威林辉杨立辉
Owner DONGGUAN UNIV OF TECH
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