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Wastewater treatment method

A treatment method and waste water technology, applied in water/sewage multi-stage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., can solve the problem that the water recovery rate cannot be effectively improved, and achieve fast treatment speed and high treatment efficiency. The effect is good and the process is simple

Inactive Publication Date: 2015-12-16
JIANGSU JIANYA ENVIRONMENTAL PROTECTION TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, with factors such as population growth, industrial and commercial activities, and climate change causing global water shortages, in addition to continuously developing water resources to increase water supply, water recycling is regarded as one of the necessary means for sustainable development of water resources. However, water recycling When reused, due to the influence of the conductivity or salt concentration of the treated water, the water recovery rate cannot be effectively improved, and the concentrate is still high in conductivity or contains high concentration of salts. Up to now, there is no economical and effective treatment method. In order to avoid For the impact caused by the water body, the only way to deal with it is to reduce the water recovery rate

Method used

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  • Wastewater treatment method

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Embodiment 1

[0025] Embodiment 1: In the treatment method of the waste water, the oxidative coagulation equipment selects intermittent reaction and static sedimentation device, the treatment method of the waste water is secondary purification and secondary precipitation, and the system for treating waste water includes a waste water storage tank and a coagulation sedimentation tank , intermediate clear water tank, intermittent reaction and static sedimentation device, sludge drying tank, facultative biochemical tank, aeration pond, plant ecological purification tank, sand and gravel infiltration tank and clear water storage tank; the specific process flow is:

[0026] (1) Concentrating industrial wastewater into the wastewater storage pool; the wastewater storage pool also has a pre-cooling function to obtain cooled industrial wastewater;

[0027] (2) Introduce the cooled industrial wastewater obtained in step (1) into the coagulation sedimentation tank, and add coagulant polyaluminum chlor...

Embodiment 2

[0035] Embodiment 2: In the treatment method of this waste water, the oxidation coagulation equipment selects catalytic oxidation reaction and neutralization coagulation sedimentation tank, and the treatment method of this waste water is secondary purification, secondary precipitation, and the system for processing waste water includes waste water storage tank, coagulation Sedimentation tank, intermediate clear water tank, catalytic oxidation reaction and neutralization coagulation sedimentation tank, sludge drying tank, facultative biochemical tank, aeration pond, plant ecological purification tank, sand and gravel infiltration tank and clear water storage tank; specific process The process is:

[0036] (1) Concentrating industrial wastewater into the wastewater storage pool; the wastewater storage pool also has a pre-cooling function to obtain cooled industrial wastewater;

[0037] (2) Introduce the cooled industrial wastewater obtained in step (1) into the coagulation sedim...

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Abstract

The invention discloses a wastewater treatment method. The wastewater treatment method employs secondary purification; and a wastewater treatment system comprises a wastewater storage pool, a coagulative precipitation tank, an intermediate clean water tank, oxidative condensation equipment, a sludge drying tank, a facultative biochemical tank, an aeration pond, a plant ecological purifying tank, a sandstone percolation tank and a clean water storage pool. The method disclosed by the invention is simple in process flow, controllable in operation, high in treatment speed and good in treatment effect, and treated water can reach standards; and by the treatment method, energy saving and emission reduction can be realized, part of the treated standard-reaching water is directly reused to some production equipment and greening irrigation and the like, and the rest of the treated standard-reaching water is directly conveyed and discharged through a discharging pipeline.

Description

technical field [0001] The invention belongs to the field of waste water treatment, and in particular relates to a waste water treatment method. Background technique [0002] At present, with factors such as population growth, industrial and commercial activities, and climate change causing global water shortages, in addition to continuously developing water resources to increase water supply, water recycling is regarded as one of the necessary means for sustainable development of water resources. However, water recycling When reused, due to the influence of the conductivity or salt concentration of the treated water, the water recovery rate cannot be effectively improved, and the concentrate is still high in conductivity or contains high concentration of salts. Up to now, there is no economical and effective treatment method. In order to avoid For the impact caused by the water body, the only way to deal with it is to reduce the water recovery rate. Wastewater treatment (w...

Claims

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Application Information

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IPC IPC(8): C02F9/14
Inventor 邱志荣戴亚平
Owner JIANGSU JIANYA ENVIRONMENTAL PROTECTION TECH CO LTD
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