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Energy-saving and emission-reducing town sewage treatment system

A technology for urban sewage, energy saving and emission reduction, applied in the fields of water/sewage multi-stage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc. and other problems to achieve the effect of stable hydraulic load

Active Publication Date: 2014-08-06
陈秋竹
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, this method has the same advantages and disadvantages as the traditional activated sludge method. The advantage is that the technology is mature and the operation is simple; the disadvantage is that the construction investment is large, sludge bulking is easy to occur, denitrification mainly depends on reflux, the kinetic energy consumption is large, and the aerobic tank occupies Large area and other issues
[0021] (2) Poor water quality
[0022] (3) Large changes in water volume
[0023] After field inspection of more than 1,200 sewage treatment facilities in different regions of the country and visits to the owners, the results show that the current sewage treatment technology in the towns has the following problems: large area, large investment, high operation and maintenance costs, and long-term deployment. The staff is on duty, the effluent water quality cannot be discharged stably up to the standard, or it is basically not in operation. In winter, the treatment effect is particularly poor

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0080] Embodiment 1 The structure and technology of sewage treatment system of the present invention

[0081]The lifting type is used as the leading process technology to make an explanation, see the structure figure 1 :

[0082] 1. Sewage is collected through the municipal pipe network, and enters the grille pool 2 at the front end of the sewage treatment device from the water inlet pipe 1. Artificial grilles or mechanical grilles 3 are installed in the grille pool 2 to remove larger sewage that may block The solid matter in the self-stirring lift pump 5 is regularly transported out for disposal.

[0083] The sewage treated by the grid 3 enters the adsorption pool 4, and the sewage self-stirring lifting pump 5 is installed in the adsorption pool 4, and the self-stirring lifting pump 5 realizes high water level 6 operation and low water level 7 shutdown. Sewage self-stirring lift pump 50 is preferred to choose the automatic stirring sewage pump, which is characterized by: th...

Embodiment

[0134] Embodiment New small town processing experiment

[0135] Newly built small towns, the annual average climate is around 18°C, the average minimum temperature in winter is 6-8°C, the summer is hotter, and the daily maximum temperature in July and August is above 35°C. The scale of sewage treatment is 5,000 tons / day (250 tons / hour), implemented in two phases, the scale of sewage treatment in the first phase is 2500 tons / day (125 tons / hour).

[0136] 1. Sewage is treated by lifting, and the structural units are as follows:

[0137] 1. There are four groups of adsorption pools, and the process size of a single group is:

[0138] 4.8m×4.8m×4.5m, the pool capacity is 414.72m 3 ;

[0139] 2. There are four groups of anoxic pools, and the process size of a single group is:

[0140] 4.8m×4.8m×4.5m, the pool capacity is 414.72m 3 ;

[0141] 3. There are four groups of aeration tanks, and the process size of a single group is:

[0142] 7.5m×4.8m×4.9m, the pool capacity is 70...

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Abstract

The invention belongs to the technical field of environmental protection and particularly relates to an energy-saving and emission-reducing town sewage treatment system. The energy-saving and emission-reducing town sewage treatment system provided by the invention comprises a strengthened pre-treatment system, a self-suction jet biological aerated filter system, a composite fluidized-bed biomembrane reaction tank system, a sludge treatment and refluxing system and a winter heat insulation system and is realized by a sewage lifting technology or sewage self-flowing process. According to the system, a novel anaerobic sewage treatment technology, an activated sludge process and a novel aerobic biomembrane-process treatment technology are organically combined, so that the advantages of small floor area, small investment, low energy consumption and simplicity and convenience in maintenance management are achieved; the sewage treatment system disclosed by the invention can be applied to town sewage treatment, and treated outlet water can stably reach the standard A of first-level standard of discharge standard of pollutants for municipal wastewater treatment plant (GB18918-2002).

Description

technical field [0001] The invention belongs to the technical field of environmental protection, and in particular relates to an energy-saving and emission-reducing urban sewage treatment system. Background technique [0002] The 12th Five-Year Plan for National Environmental Protection (Guo Fa [2011] No. 42), the Party Central Committee and the State Council attach great importance to environmental protection as an important part of implementing the Scientific Outlook on Development and an important part of transforming the mode of economic development. As a fundamental measure to promote the construction of ecological civilization. [0003] At present, the overall deterioration of my country's environmental conditions has not been fundamentally curbed, environmental contradictions are prominent, and the pressure continues to increase. Water pollution in some key river basins and sea areas is serious, atmospheric haze is prominent in some regions and cities, and the discha...

Claims

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Application Information

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IPC IPC(8): C02F9/14
Inventor 陈秋竹王明芳陈思宇陈颖
Owner 陈秋竹
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