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Energy-saving and emission-reducing town sewage treatment system

A treatment system and urban sewage technology, applied in water/sewage treatment, water/sewage multi-stage treatment, water/sludge/sewage treatment, etc., can solve problems such as incomplete treatment, speed up separation and improve flocculation effect , the effect of compact floc structure

Pending Publication Date: 2021-05-18
温州市燎鑫建设有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned prior art scheme has the following defects: the above-mentioned water treatment method is a physical treatment method, and the physical treatment method is the simplest water treatment method, which recovers the insoluble suspended pollutants in the sewage by physical separation, but The physical treatment method can only do simple wastewater treatment, and the treatment is very incomplete, so it still needs to be improved

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] This application discloses an energy-saving and emission-reducing urban sewage treatment system, which includes a sedimentation filter tank and a sewage treatment tank, and a sewage treatment agent is added to the sewage treatment tank; in each liter of sewage, the sewage treatment agent includes the following raw materials: polyethylene Amine, aluminum-magnesium hydrotalcite, 3-methoxy-4-hydroxybenzaldehyde, chitosan, 10% hydrochloric acid and initiator, wherein the initiator is potassium persulfate; the contents of each component are shown in Table 1 below.

[0043] The preparation method of sewage treatment agent is:

[0044] Mix polyethyleneimine, chitosan and hydrochloric acid, stir for 5min under nitrogen, then raise the temperature to 55°C, add initiator and stir for 15min, then add 3-methoxy-4-hydroxybenzaldehyde, continue stirring After reacting for 30 minutes, stop nitrogen flow; then add aluminum-magnesium hydrotalcite and stir for 20 minutes to obtain the st...

Embodiment 2

[0046] This application discloses an energy-saving and emission-reducing urban sewage treatment system, which includes a sedimentation filter tank and a sewage treatment tank, and a sewage treatment agent is added to the sewage treatment tank; in each liter of sewage, the sewage treatment agent includes the following raw materials: polyethylene Amine, aluminum-magnesium hydrotalcite, 3-methoxy-4-hydroxybenzaldehyde, chitosan, 12% hydrochloric acid and initiator, wherein the initiator is potassium persulfate; the contents of each component are shown in Table 1 below.

[0047] The preparation method of sewage treatment agent is:

[0048] Mix polyethyleneimine, chitosan and hydrochloric acid, stir for 6min under nitrogen, then raise the temperature to 60°C, add initiator and stir for 20min, then add 3-methoxy-4-hydroxybenzaldehyde, continue stirring After reacting for 40 minutes, stop nitrogen flow; then add aluminum-magnesium hydrotalcite and stir for 30 minutes to obtain the st...

Embodiment 3

[0050]This application discloses an energy-saving and emission-reducing urban sewage treatment system, which includes a sedimentation filter tank and a sewage treatment tank, and a sewage treatment agent is added to the sewage treatment tank; in each liter of sewage, the sewage treatment agent includes the following raw materials: polyethylene Amine, aluminum-magnesium hydrotalcite, 3-methoxy-4-hydroxybenzaldehyde, chitosan, 11% hydrochloric acid and initiator, wherein the initiator is potassium persulfate; the contents of each component are shown in Table 1 below.

[0051] The preparation method of sewage treatment agent is:

[0052] Mix polyethyleneimine, chitosan and hydrochloric acid, stir for 5min under nitrogen, then raise the temperature to 58°C, add initiator and stir for 18min, then add 3-methoxy-4-hydroxybenzaldehyde, continue stirring After reacting for 35 minutes, stop nitrogen flow; then add aluminum-magnesium hydrotalcite and stir for 25 minutes to obtain the sto...

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Abstract

The invention relates to the field of sewage treatment, and discloses an energy-saving and emission-reducing type town sewage treatment system which comprises a precipitation filter tank and a sewage treatment tank, and a sewage treatment agent is added into the sewage treatment tank; in each liter of sewage, the sewage treatment agent comprises the following raw materials in parts by weight: 20-30 parts of polyethyleneimine; 5 to 10 parts of aluminum magnesium hydrotalcite; 2 to 3 parts of 3-methoxy-4-hydroxy benzaldehyde; 0.8 to 1 part of chitosan; 0.3 to 0.4 part of hydrochloric acid; and 1-2 parts of an initiator; the preparation method has the following advantages and effects that polyethyleneimine with more active groups is adopted, in the presence of hydrochloric acid, 3-methoxy-4-hydroxybenzaldehyde, chitosan and polyethyleneimine are subjected to a graft polymerization reaction, a product with higher flocculation performance is obtained, the product is blended with an inorganic flocculant aluminum-magnesium hydrotalcite, and an organic-inorganic composite flocculant can be obtained, and can achieve a relatively ideal sewage treatment effect, so that the sewage reaches the discharge standard.

Description

technical field [0001] The application relates to the field of sewage treatment, in particular to an energy-saving and emission-reducing urban sewage treatment system. Background technique [0002] Sewage treatment refers to the process of purifying sewage to meet the water quality requirements for reuse. Sewage treatment is widely used in various fields such as construction, agriculture, transportation, energy, petrochemical, environmental protection, urban landscape, medical treatment, and catering. More and more into the daily life of ordinary people. [0003] At present, the patent with the publication number CN107485922A discloses a sedimentation filter tank, including a sedimentation tank, a filter tank, and the sedimentation tank and the filter tank are connected together. Rapid separation, small particulate matter is separated by filtration, which improves the efficiency of removing suspended matter. [0004] The above-mentioned prior art scheme has the following d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/52C02F1/54C02F1/56C02F9/04
CPCC02F1/5236C02F1/56C02F1/54C02F1/5263C02F9/00C02F2209/08C02F2209/11
Inventor 赵永生赵顺永王乐荣
Owner 温州市燎鑫建设有限公司
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