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V-type gas stripping nitrogen and phosphorus removal process for large and medium-sized sewage treatment

A sewage treatment, denitrification and phosphorus removal technology, applied in the direction of water/sewage multi-stage treatment, water/sludge/sewage treatment, dehydration/drying/thickened sludge treatment, etc., can solve the problem of large and medium-sized sewage denitrification and removal The actual needs of phosphorus production, the inability to carry out large-scale sewage treatment, and the difficulty of stably meeting the discharge water quality standards have achieved the effects of small footprint, construction investment saving, and short treatment process

Inactive Publication Date: 2018-01-19
广州和智智能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to solve the existing problems in the prior art, such as high treatment operation cost, long process flow, difficult process operation, limited scale of sewage treatment, low efficiency of sewage treatment, and the quality of discharged water after treatment is difficult to reach the standard stably, let alone large-scale Sewage treatment is difficult to meet the actual needs of large and medium-sized sewage denitrification and phosphorus removal, and a V-type air stripping denitrification and phosphorus removal process for large and medium-sized sewage treatment is proposed

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  • V-type gas stripping nitrogen and phosphorus removal process for large and medium-sized sewage treatment
  • V-type gas stripping nitrogen and phosphorus removal process for large and medium-sized sewage treatment

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Embodiment 1

[0022] The V-type gas stripping denitrification and phosphorus removal process for large and medium-sized sewage treatment proposed by the present invention comprises the following steps:

[0023] S1. Using the existing technical facilities, the sewage is pretreated through the coarse grid room, the sewage lifting pump room, the fine grid room and the swirl grit chamber in sequence, and the separated sewage flows into the V-shaped integrated gas lift tank , the V-type air-lifting integrated tank is divided into three zones: anaerobic, anoxic and aerobic, in which the anaerobic zone is located in the center of the V-shaped integrated gas-lifting tank, and the anoxic zone is located on one side of the anaerobic zone. The aerobic zone is surrounded by the anaerobic zone and the anoxic zone. After the sewage flows into the aerobic zone and anaerobic zone respectively, it flows into the anoxic zone through the aerobic zone and the anaerobic zone, and the separated sludge is introduc...

Embodiment 2

[0029]The V-type gas stripping denitrification and phosphorus removal process for large and medium-sized sewage treatment proposed by the present invention comprises the following steps:

[0030] S1. Using the existing technical facilities, the sewage is pretreated through the coarse grid room, the sewage lifting pump room, the fine grid room and the swirl grit chamber in sequence, and the separated sewage flows into the V-shaped integrated gas lift tank , the V-type air-lifting integrated tank is divided into three zones: anaerobic, anoxic and aerobic, in which the anaerobic zone is located in the center of the V-shaped integrated gas-lifting tank, and the anoxic zone is located on one side of the anaerobic zone. The aerobic zone is surrounded by the anaerobic zone and the anoxic zone. After the sewage flows into the aerobic zone and anaerobic zone respectively, it flows into the anoxic zone through the aerobic zone and the anaerobic zone, and the separated sludge is introduce...

Embodiment 3

[0036] The V-type gas stripping denitrification and phosphorus removal process for large and medium-sized sewage treatment proposed by the present invention comprises the following steps:

[0037] S1. Using the existing technical facilities, the sewage is pretreated through the coarse grid room, the sewage lifting pump room, the fine grid room and the swirl grit chamber in sequence, and the separated sewage flows into the V-shaped integrated gas lift tank , the V-type air-lifting integrated tank is divided into three zones: anaerobic, anoxic and aerobic, in which the anaerobic zone is located in the center of the V-shaped integrated gas-lifting tank, and the anoxic zone is located on one side of the anaerobic zone. The aerobic zone is surrounded by the anaerobic zone and the anoxic zone. After the sewage flows into the aerobic zone and anaerobic zone respectively, it flows into the anoxic zone through the aerobic zone and the anaerobic zone, and the separated sludge is introduc...

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Abstract

The invention belongs to the technical field of sewage treatment, particularly relates to a V-type gas stripping nitrogen and phosphorus removal process for large and medium-sized sewage treatment, and solves the problems of high treatment operation cost, long process flow, high operation difficulty of the process, limited sewage treatment scale, low sewage treatment efficiency, and difficulty ofthe treated discharged sewage in reaching the standard stably in the prior art. A preparation method comprises the following steps: enabling pretreated separated sewage to flow into a V-type gas stripping integrated tank, and guiding sludge into a sludge storage tank; adding a sewage treatment agent, controlling the temperature and the pH value of the sewage, stirring and aerating the sewage; adding a chemical phosphorus removal agent to remove phosphorus, filtering and separating to obtain the sludge and filtered water; and separating mud and water in the sludge, conducting compression molding, and drying to obtain a dry mud cake. The process has the advantages that the process system is simple, the occupied area is small, the treatment flow is short, the investment and operation costs are low, the process operation is simple, and the treatment efficiency is high, and the treated discharged water reaches the standard stably.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a V-type gas stripping denitrification and phosphorus removal process for large and medium-sized sewage treatment. Background technique [0002] Water is the most basic condition for people to survive and develop. People use water every day and produce sewage at the same time. Especially in today's society with the rapid development of industry and agriculture, the output of sewage and waste water is increasing day by day. If it is not properly treated, it will not only pollute the environment, but also waste water resources. Although natural water resources are abundant, the amount of water that can be used by people is limited, and due to increasingly serious environmental pollution problems, water resources are scarce in some areas. Therefore, effective sewage treatment and reuse can not only solve the problem of water resources The problem of scarcity can also reduc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F11/12
Inventor 谢志科
Owner 广州和智智能科技有限公司
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