The membrane bioreactor (MBR) is based on the combination of a suspended biomass reactor and a separation step on porous membrane filtration. It presents several advantages in terms of water resource protection because of the great quality of the treated water that can be reused as well for irrigation, cleaning or cooling water on industrial site, domestic purposes (e.g. toilet flushing). The quality of the water, notably the absence of solids in suspension and turbidity, allows considering the MBR as a perfect tool for pre-treatment before desalination or preparation of water of very high quality. Moreover, because of its modular property, the MBR may also be favourable for developing a new wastewater network configuration in an urban area.

Compared with conventional activated sludge system, the membrane bioreactor system is much simpler, as shown below.

MBR system's advantages include the following:

• almost complete solids and bacteria (Giardia and Crypto) removal;
• high effluent quality; modular design with good expandability;
• robustness in recovery resistant to upsets due to shock loadings or peak and fluctuating flows;
• sludge age or SRT (solids retention time) and hydraulic residence time (HRT) are controlled separately;
• less odor;
• sophisticated but yet simple controls.

Our production has ISO9001:2000 & CE certifications.

Qingdao Yimei Environment Project Ltd. is found in 1988.We are located in the largest port city-Qingdao China. Our factary take up 36,000 square metres and there are more than 130 kinds machine for manufacturing. As a member of Shandong Province Environmental Protection Industrial Association, we have 360 staff and  72 experienced engineers.

Our main product is the equipment for Environment Protection and Waste Water Treatment.And the product is popular all over the world,such as Africa, North America,Domestic Market,Eastern Asia,Mid East.