Study on the Integrated Vortex-Grid Clarification Process and its Application

Abstract:

Based on Micro-vortex coagulation and Hazen theory, the process of integrated vortex grid clarification bears four characteristics. Firstly, there are a lot of micro-whirling reactors whose surfaces hole rate is designed by the raw water quality in the first and second flocculation zone. Then, an inclined-tube in the precipitate zone is installed. Thirdly, a sludge concentration zone in the tank is also equipped. Lastly, by applying the low return or non-return technologies and changing some inner structure which will reduce the total energy cost. We have not only achieved a more efficient use of the cubage of the reactors, but also reduced the total energy consumption. The paper argues that in comparison to other clarification technology, the Micro-vortex clarification process deserves wide application for its various advantages, such as a higher coagulation efficiency, a shorter reactivity time, a better quality of finished water, a stronger adaptive capability, a more convenient construction and the like.

• Periodical: Advanced Materials Research (Volumes 183-185)
• Pages: 2115-2119
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.183-185.2115
• Online since: January 2011
• Authors: Zhen Gong Tong
• Keywords: Clarification, Integration, Micro-Vortex Flocculation, Water Quality

References

[1] Ken Carlson, Steve Via, Bill Ballamy, et al. Secondary effects of enhanced coagulation and softening . J. AWWA., 2000, 92(6): 63~75.

[2] Christian Volk . Impact of enhanced and optimized coagulation on removal of organic matter and its biodegradable fraction in drinking water. J. Wat. Res. , 2002, 34(12): 3247~3257.

DOI: 10.1016/s0043-1354(00)00033-6

[3] Shi Jin, Kong Lingyong. The basic principle and application in water purification plant of high density clarification tank [J], Water Purification Technology, 2007. 6.

[4] Zhou Jun, Li Zhongpei, Wang Yan, et al. Highly effective settling pond (Densadeg) used in the transformation of old water works [J]. China Water & Wastewater, 2008, 24(18): 40~42.

[5] Zhang Pengtian, Hu Fengping. Micro-whirling Reactor and its Applications in South City Water Supply Plant of Jimo Water Supply Company[J]. Journal of East China Jiaotong University, 2006, 23(5): 9~11.

[6] Tong Zhengong, Hu Fengping. Analyzing the implement of Whirling Clarification Technique in Wastewater treatment [J]. Technology of Water Treatment, 2009, Vol. 35(9): 117-119.