Zero-energy bacteria and algae advanced treatment moving bed reactor
A moving bed reactor and advanced treatment technology, applied in the field of sewage treatment, can solve the problems of large area of treatment technology, low maintainability, complex process, etc., to improve sewage treatment efficiency, good application value, and increase dissolved oxygen volume effect
Active Publication Date: 2021-06-22
CHONGQING UNIV
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Problems solved by technology
However, the aerobic reaction requires the use of aeration equipment to add a large amount of oxygen to the water body, and its energy consumption is relatively high.
In mountainous villages and towns, a method of aerating and oxygenating falling water by using the characteristics of large elevation differences in mountainous villages and towns is proposed to reduce energy consumption. The treatment technologies are combined to treat domestic sewage, but the above treatment technologies occupy a large area, the process is complicated, and the maintainability is low
The integrated complete set of equipment can effectively overcome the shortcomings of the large area of the existing treatment technology. Therefore, for domestic sewage treatment in mountainous villages and towns, how to make full use of the terrain characteristics of these areas to develop more efficient, energy-saving and simple integrated complete set of equipment for treatment Technology matters
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[0054] Taking a rural sewage in Chongqing as the treatment object, the influent water quality is COD=300mg / L, BOD 5 =250mg / L, SS=200mg / L, TP=10mg / L, TN=50mg / L, NH3-N=45mg / L. The effective volume is 1.33m 3 , of which the algae advanced treatment area is 0.23m 3 , anoxic zone 0.23m 3 , Aerobic zone 0.87m 3 , the daily processing capacity is 1.5 m 3 .
[0055] Operating parameters: sludge age (SRT) 12 days, MLSS 4000mg / L, sludge return ratio 100%.
[0056] Treatment results: the average removal rates of effluent COD≤60mg / L, TN≤20mg / L, NH3-N≤8mg / L, and TP≤1mg / L are 90%, 72%, 83.7%, and 82.5% respectively, and the effluent water quality meets the "urban Pollutant Discharge Standards for Sewage Treatment Plants (GB18918-2002) Class B Standard.
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The invention discloses a moving bed reactor for the advanced treatment of bacteria and algae with zero energy consumption, which is composed of a first cylinder body, a second cylinder body, a third cylinder body and a fourth cylinder body arranged coaxially and gradually increasing in diameter. A first annular cavity is formed between the cylinder and the second cylinder, a second annular cavity is formed between the second cylinder and the third cylinder, and a second annular cavity is formed between the third cylinder and the fourth cylinder The third annular cavity; the first cylinder is provided with the first biological filler, the first cylinder communicates with the first annular cavity, and the second annular cavity is provided with the second biological filler, the first annular cavity The water body in the cavity enters the second annular cavity from the overflow weir set on the top of the second cylinder, the second annular cavity communicates with the third annular cavity, and algae are arranged in the third annular cavity , the wall of the fourth cylinder is made of transparent material, the light passes through the wall and enters the third annular cavity for photosynthesis of algae, and the upper part of the fourth cylinder is provided with a water outlet. The reactor has the advantages of simple structure, no energy consumption and high sewage treatment efficiency.
Description
technical field [0001] The invention belongs to the technical field of sewage treatment, in particular to a moving bed reactor for the advanced treatment of bacteria and algae with zero energy consumption. Background technique [0002] The sewage produced in the process of human life is one of the main sources of pollution of water bodies, mainly feces and washing sewage. Domestic sewage contains a large amount of organic matter, such as cellulose, starch, sugar and fat protein, etc., and often contains pathogenic bacteria, viruses and parasite eggs. Bacteria and pathogens reproduce in large numbers using organic matter in domestic sewage as nutrients, which can lead to the spread of infectious diseases. Therefore, domestic sewage must be treated before discharge. [0003] At present, domestic sewage treatment technologies include anaerobic-anoxic-aerobic technology, aerobic-anoxic technology, etc. However, the aerobic reaction requires the use of aeration equipment to ad...
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IPC IPC(8): C02F3/30C02F3/34C02F3/32C02F101/30C02F101/16C02F101/10
CPCC02F3/301C02F3/302C02F3/322C02F3/34C02F2101/105C02F2101/16C02F2101/30C02F2203/006C02F2301/08
Inventor 晏鹏施洪鑫朱晗霄
Owner CHONGQING UNIV