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System for filtering active sand

A filtration system and active sand technology, applied in the direction of filtration and separation, fixed filter elements, chemical instruments and methods, etc., can solve the problems of complex operation, large footprint of micro-polluted water purification system, etc., and achieve simple operation and saving Backwash pumps and valves and other equipment, the effect of less investment in projects

Inactive Publication Date: 2009-11-25
BEIJING WATERLINK ENVIRONMENT ENG
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The invention provides an active sand filtration system, which is used to solve the problems of the existing sewage advanced treatment and micro-pollution water purification system, which occupy a large area and are complicated to operate.

Method used

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  • System for filtering active sand
  • System for filtering active sand
  • System for filtering active sand

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Embodiment Construction

[0016] In order to solve the problems of the existing sewage advanced treatment system and micro-polluted water purification system with large footprint and complicated operation, the present invention provides an active sand filtration system, which is a continuous system integrating flocculation, clarification and filtration. The filtration treatment process can be widely used in the advanced treatment of sewage and the purification of slightly polluted water. Describe in detail below by embodiment.

[0017] see figure 1 As shown, the active sand filtration system of the present invention consists of an inlet channel 1, an active sand filter tank 2, an outlet channel 3, a sand washing sewage collection well 4, an air compression system 5, and an electrical control system 6. Among them, the water inlet channel 1 is used to evenly distribute the water to be filtered flowing into the active sand filter 2; the activated sand filter tank 2 is used to filter the water to be filte...

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Abstract

The invention discloses a system for filtering active sand, relating to the field of advanced wastewater treatment and micropolluted water purification, solving the problems of the existing system for advanced wastewater treatment and micropolluted water purification, such as large occupying area, and complicated operations, and comprising: an inlet channel (1), a filter tank for active sand (2), an outlet channel (3), a collection pond (4) for polluted water from sand washing, an air compression system (5), and an electric control system (6). The system for filtering active sand can run continuously in day and night to overcome the defects of the traditional intermittent filtration back washing, saves backwashing pumps, valves and the like, does not need single flocculation tanks, clarification tanks and the like, has low engineering investment, rational and compact structure and stable effluent water quality.

Description

technical field [0001] The invention relates to the fields of advanced sewage treatment and micro-polluted water purification, in particular to an active sand filter system. Background technique [0002] The traditional "primary treatment" and "secondary treatment" water treatment technology and equipment that have been used for many years have been difficult to meet the requirements of today's sewage purification treatment. The treated effluent cannot meet the city's water quality requirements for sewage reuse, increasing " Tertiary treatment, that is, advanced treatment process and equipment, has become the development trend of the water treatment industry in the future. At present, in the field of advanced sewage treatment and micro-polluted water purification, coagulation tanks, sedimentation tanks, filtration units and other process facilities are usually set up to meet the requirements of effluent water quality discharge standards, but they all have the disadvantages o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D29/60B01D29/50
Inventor 于凡
Owner BEIJING WATERLINK ENVIRONMENT ENG