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Method for preparing water treatment biological activity accelerant from winery wastewater treatment sludge

A technology for biological activity and wastewater treatment, which is applied in food industry wastewater treatment, water/sludge/sewage treatment, dehydration/drying/concentrated sludge treatment, etc., and can solve secondary pollution, waste of resources, and the cost of making fertilizer from sludge and product sales to achieve the effect of reducing operating costs, reducing waste of resources, and avoiding the risk of secondary pollution

Active Publication Date: 2014-02-05
武汉森泰环保股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Using landfill or incineration to treat wine brewing wastewater sludge will cause waste of resources, and there is a risk of secondary pollution. Using composting methods to prepare organic fertilizers for agriculture, gardens, and land improvement needs to solve the cost of sludge fertilizer production and product sales. question

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] (1) Dehydration. The remaining biochemical sludge discharged from the brewery wastewater treatment plant is concentrated and then the water content is reduced to 97%. The working temperature of the filter is normal temperature, the working pressure is 0.6MPa, and the filter press cycle is 4-6 hours, including 2-3 hours for sludge feeding, 1 hour for pressure keeping, and 1 hour for sludge discharge. After dehydration, the moisture content of brewing sludge is 75%. about;

[0025] (2) Drying, the dehydrated brewing sludge is thermally dried, and the dehydrated sludge is quantitatively and continuously sent to the feeding port of the indirect heating wedge-type hollow paddle dryer by the screw feeder, and the sludge enters After the dryer, the sludge is turned and stirred by the rotation of the paddles, and the heating interface is continuously updated, which is in contact with the wall and the paddles, and is fully heated to evaporate the water contained in the sludge. T...

Embodiment 2

[0029] Embodiment 2 Water treatment bioactivity accelerator of the present invention carries out the effect of water treatment

[0030] A sewage treatment station treats 300m of a certain chemical wastewater every day 3 , the COD of wastewater entering the biochemical section after pretreatment is about 3000mg / L, and the wastewater does not contain nitrogen sources. Because of the imbalance of nutrient ratio, about 50kg of urea needs to be added to the biochemical aeration tank every day to supplement the nitrogen source required for microbial growth. , to improve the effect of biochemical treatment, use the water treatment biological activity accelerator of the present invention to replace urea, and the daily dosage is about 100kg. After using the water treatment bioactivity accelerator of the present invention, the removal rate of organic matter (COD) can be increased by more than 20% , 15% savings in operating costs per degraded unit of organic matter.

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Abstract

The invention belongs to the technical field of environmental protection, and discloses a method for preparing a water treatment biological activity accelerant from winery wastewater treatment sludge. According to the method disclosed by the invention, the sludge generated by treatment of winery wastewater is used as a raw material and is prepared into the water treatment biological activity accelerant through the steps of dehydration, drying, modification, granulation and screening. The method is adopted to perform treatment and resource utilization on the winery wastewater treatment sludge, so that a now way for treating brewing sludge is opened up, the prepared novel water treatment biological activity accelerator improves the sewage treatment efficiency at the same time, and the dosage of nutrients is reduced, so that wastes are changed into treasures, and energy conservation and emission reduction are realized.

Description

technical field [0001] The invention relates to the technical field of environmental protection, and relates to a method for preparing a bioactivity accelerator for water treatment from brewery wastewater treatment sludge. Background technique [0002] The aerobic biological treatment method is widely used in the field of sewage treatment, and has the characteristics of stable treatment effect and low operating cost. The biological method mainly uses microbial metabolism to degrade organic matter in sewage. The nutrients required for microbial growth include carbon sources, nitrogen sources, inorganic salts, and growth factors (such as trace elements). At present, biological treatment of sewage faces some problems, such as the high nitrogen and phosphorus content in municipal sewage, and the relative lack of carbon sources in sewage, which leads to poor biological nitrogen and phosphorus removal in municipal sewage. Nitrogen and phosphorus in the tail water generally exceed ...

Claims

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Application Information

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IPC IPC(8): C02F11/00C02F11/12C02F3/02C02F103/32
CPCY02W10/10
Inventor 叶庆华杨文斌官圣灵彭继伟左洛
Owner 武汉森泰环保股份有限公司
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