1 Biofoam, Plastic Science and Technology, 200 1 05.

Study on the control and application of sludge bulking and biological foam in oxidation ditch, Dai Xingchun, Xie Bing, Huang Minsheng, Tian, Environmental Science and Technology, 30.09, 2007.

Prevention and control measures of Nocardia biofoam in MSBR system, Du, Cui, Zhong, Water Supply and Drainage in China, Volume 23 12, 2007.

4 Generation and Control of Biological Foam in A2/O Process of Lugang Sewage Treatment Plant, Zhao Fuxin, Zhang Wanze, Water Supply and Drainage, Vol.32, No.0/2, 2006.

Study on the Preparation and Properties of Biofoam Glass, Yu Manli, Mu Song, Journal of Wuhan University of Technology, Vol. 28, 2006,No. 1 1.

6 Mechanism and Control of Biological Foam in Activated Sludge Wastewater Treatment Plant, Xie Bing, Xu Yatong, Water Purification Technology, Vol.25, No.012006.

Influence and control of biological foam in sewage treatment plant, pheasant satisfaction, industrial water and wastewater, vol. 36, no.05, 2005.

8 Formation and control of biological foam by activated sludge process, Li,,, Lv Yangquan,, Chen Zhigen, China Water Supply and Drainage, 200 1 vol. 17 04, full text.

9 Brazil successfully develops bio-foam, chemical industry and engineering technology, 200 1 Vol.87, 03.

10 Brazilian bio-foam plastic, PVC, 200 1 No.01See the full text.

1 1 Generation and control of biological foam in aeration tank, Huang Xuyong, Zhao Baoquan, Gansu Science and Technology, 1999 Vol. 15, No.02.