Study on Dehydration and Comprehensive Utilization of Shield Mud-based Ceramsites

CHEN Pan; YANG Lei; SUN Wei; LIU Hang; CHAI Xujian

doi:10.13779/j.cnki.issn1001-0076.2019.03.024

2019 Vol. 39, No. 3

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CHEN Pan, YANG Lei, SUN Wei, LIU Hang, CHAI Xujian. Study on Dehydration and Comprehensive Utilization of Shield Mud-based Ceramsites[J]. Conservation and Utilization of Mineral Resources, 2019, 39(3): 155-159. doi: 10.13779/j.cnki.issn1001-0076.2019.03.024

Citation:

CHEN Pan, YANG Lei, SUN Wei, LIU Hang, CHAI Xujian. Study on Dehydration and Comprehensive Utilization of Shield Mud-based Ceramsites[J]. Conservation and Utilization of Mineral Resources, 2019, 39(3): 155-159. doi: 10.13779/j.cnki.issn1001-0076.2019.03.024

Study on Dehydration and Comprehensive Utilization of Shield Mud-based Ceramsites

School of Mineral Processing and Bioengineering, Central South University, Changsha 410083, China

Received Date: 22 April 2019

Publish Date: 25 June 2019

Abstract

Abstract

Aiming at the problems of high water content and comprehensive utilization of shield mud, we studied the effects of pH, type of filter aid(GPB, fly ash, gypsum, chaff) and pressure on the moisture content as well as the removal of COD from methylene blue solution by sintered ceramsites with additives (AlCl₃, ZnCl₂, Fe₂O₃, Fe₃O₄, and NH₄HCO₃). The results showed that the modified amide flocculant (GPB) could reduce the moisture content of shield mud effectively in the four kinds of filter aid. Under the condition of pH value of 4 and pressure of 800 Pa, adding GPB could reduce the moisture content from 38.89% to 24.40%. Screening test results for additives shown that the sintered ceramsites made by adding NH₄HCO₃ could reduce COD of methylene blue solution effectively. The additive dosage test showed that the sintered ceramsites made by adding 10% NH₄HCO₃ could reduce the COD of methylene blue solution from 162.75 mg/L to 90.64 mg/L.
- shield mud /
- dehydration /
- ceramsites /
- adsorption

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References

[1]	刘淑娟.咸阳市地铁建设对城市环境景观的影响分析研究[J].环境科学与管理, 2017, 42(7):57-61. doi: 10.3969/j.issn.1673-1212.2017.07.014 CrossRef Google Scholar
[2]	师雯洁, 程文, 任立志, 等.地铁施工废弃泥浆处理试验研究[J].水资源与水工程学报, 2017, 28(1):141-145. Google Scholar
[3]	梁止水, 杨才千, 高海鹰, 等.建筑工程废弃泥浆快速泥水分离试验研究[J].东南大学学报(自然科学版), 2016, 46(2):427-433. Google Scholar
[4]	李旭.泥水盾构废弃泥浆絮凝脱水试验研究[J].铁道建筑, 2018, 58(5):144-147. Google Scholar
[5]	周昊宸, 周向清.盾构泥水固液快速分离用改性无机絮凝剂及改性方法和应用: 108975474A[P].2018-12-11. Google Scholar
[6]	元敬顺, 赵立会, 李振华, 等.淤泥对污泥、粉煤灰-页岩陶粒性能的影响[J].河北建筑工程学院学报, 2016, 34(3):52-55. doi: 10.3969/j.issn.1008-4185.2016.03.011 CrossRef Google Scholar
[7]	刘爽, 支家强, 吴鹏, 等.污水厂污泥与河道淤泥联合烧制陶粒的技术研究[J].砖瓦, 2017(7):18-24. Google Scholar
[8]	张卓, 张峰君, 谢发之, 等.盾构渣土基免烧免蒸陶粒固化重金属离子研究[J].广州化工, 2015, 43(9):51-53. doi: 10.3969/j.issn.1001-9677.2015.09.021 CrossRef Google Scholar
[9]	郝彤, 王帅, 李鑫箫, 等.利用盾构渣土制备水泥混合材的可行性研究[J].硅酸盐通报, 2019, 38(4):1018-1023. Google Scholar
[10]	韩婷婷, 吴思麟, 吕一彦.泥浆中水分形态对抗剪强度与流变性的影响[J].长江科学院院报, 2018, 35(2):104-108. Google Scholar
[11]	Neyens E, Baeyens J, Dewil R, et al. Advanced sludge treatment affects extracellular polymeric substances to improve activated sludge dewatering[J]. Journal of hazardous materials, 2004, 106(2-3): 83-92. doi: 10.1016/j.jhazmat.2003.11.014 CrossRef Google Scholar
[12]	林春绵, 王建超, 甄万顺.利用污泥烧制陶粒滤料的实验研究[J].浙江工业大学学报, 2018, 46(5):585-590. doi: 10.3969/j.issn.1006-4303.2018.05.020 CrossRef Google Scholar
[13]	魏博, 张一敏, 包申旭.煅烧制度对高岭土活性及地聚物性能的影响[J].非金属矿, 2016, 39(4):31-34. doi: 10.3969/j.issn.1000-8098.2016.04.010 CrossRef Google Scholar
[14]	李天鹏.新型陶粒的制备、表面改性及处理模拟废水机制研究[D].上海: 东华大学, 2017. Google Scholar