The Experimental of Preparation of Slow-Release Trace Ni²⁺ Ceramsite and Study about Influence of Wastewater Anaerobic Treatment

Abstract:

Using fly ash, cement, lime, gypsum as main raw material, CaCl₂, Na₂SO₄ and NaCl as activating agent, using steam curing method, the strength of ceramsite as main indicator, by orthogonal experiment to determine the best proportion of raw material, discussing the release process of trace metals element of ceramsite. Through contrast test with the blank group, commodity ceramsite group，homemade common ceramsite group, only adding Ni²⁺ group and slow-release Ni²⁺ ceramsite group in the microbial reactor can obtain: the removal rate of COD is 66.84%, 74.95% ,80.63%, 82.63% and 91.79% respectively, removal rate of adding modification ceramsite is the peak, 24.95% higher than blank group, 16.84% higher than adding Ni²⁺ group. Slow-release ceramsite can significantly increase the activity of activated sludge, comparing with other ceramsite and adding trace metal element directly, which has more superior process performance.

• Periodical: Advanced Materials Research (Volume 454)
• Pages: 348-351
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.454.348
• Online since: January 2012
• Authors: Hui Dong Su, Dan Fu
• Keywords: Fly Ash (FA), Microorganism, Release, Trace Metal Elements, Unburned Ceramsite

References

[1] Speece R E.Effect of Process Configuration and Substrate Complexity on the Performance of Anaerobic Processes.Wat Res. Vol.35(2001),p.817

[2] Yong Hu,Chuixue Kong,Xiaobo Yin.study of Different combination of nutrient element on the impact of produce biogas in high pharmaceutical wastewater China Biogas.Vol.27(20 09),pp.19-22.

[3] Sheli Chai, Xue Cai,Zunyuan Rui.trace metal on the effect of wastewater anaerobic treatment .Environmental Pollution and Control.Vol.28(2006),p.385.

[4] Yaxin Li,Jiangang Yang.Dynamics research of Trace metal elements on the actiation of methane bacteria China Biogas . Vol.18(2000)

[5] Yunfeng Pan,Wenzhe Li.Trace metal elements on the influence of anaerobic sludge.Renewable energy sources.Vol.25,(2007),pp.51-54.

[6] Xuezheng Meng,Zhenhong Lai,Tengrui Long.Influence on the active of anaerobic-aerobic activated sludge with Metal ion[J]. Journal of Safety and Environment,(2004),pp.43-45.

[7] Sharma J,Singh R.Effect of nutrients supplementation on anaerobic sludge development and activity for treating distillery effluent. Bior- esource Technol. Vol.79,(2001),pp.203-206.

DOI: 10.1016/s0960-8524(00)00131-0

[8] Cangjun Ke , Activity Mechanism of Feldspar For Autoclaved Fly Ash Products[J], Journal Of The Chinese Ceramic Society, Vol.8,(2006), p.1015

[9] Meiyan Liu,Bihua Zhao. The Application Discussion of aActivity of Fly Ash in Industrial [J].concrete products, Jiangxi Building Materials, (2008).