MBR Technology Advanced Equipment Integrated Wastewater Treatment Machine Solid-liquid Separation

■ Introduction

The suspended solids and turbidity of the effluent are close to zero. The bacteria and viruses in the effluent are greatly removed. The energy consumption is low and the area is occupied. The area is small. In the 1970s in the United States, Japan, South Africa and many countries in Europe, membrane bioreactors have been used for sewage and wastewater treatment research. The water source is taken from domestic sewage (such as shower drainage, toilet drainage, laundry drainage, kitchen drainage, toilet drainage, etc.) and cooling water.

Parameters

■ Technical Process

Raw water - Mechanical Bar Screen - Adjusting tank - Lifting pump - Bioreactor - Circulating pump - Membrane module - Disinfection device - Reclaimed water storage tank - Reclaimed water system

Sewage enters the regulating tank through the Mechanical Bar Screen and then enters the bioreactor via the lift pump. The aerator is turned on for oxygenation through the PLC controller. The effluent from the bioreactor enters the membrane separation processing unit via the circulating pump, and the concentrated water returns to the regulating pool. The membrane separated water After rapid mixing method chlorination disinfection (sodium hypochlorite, chlorine tablets), it enters the reclaimed water storage tank. The backwash pump uses the treated water in the cleaning tank to backwash the membrane treatment equipment, and the backwash sewage returns to the regulating tank. The opening and closing of the lift pump is controlled by the water level in the bioreactor. The filtration operation and backwashing operation of the membrane unit can be controlled automatically or manually. When the membrane unit needs a chemical cleaning operation, close the water inlet valve and the sewage circulation valve, open the medicine washing valve and the medicine circulation valve, start the chemical liquid circulation pump, and perform the chemical cleaning operation.

■ Main Features

Membrane biological treatment technology is applied to wastewater recycling and has the following characteristics:

(1) Solid-liquid separation can be carried out to separate the suspended matter, colloidal matter, and microbial flora lost by the biological unit in the wastewater from the purified water. The separation process is simple, the area is small, and the effluent quality is good. Generally, it can be reused without tertiary treatment.

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