脱水污泥的土地利用对比研究

邢思奇; 吴旭; 杨华荣

doi:10.13205/j.hjgc.202010031

脱水污泥的土地利用对比研究

doi: 10.13205/j.hjgc.202010031

1. 华中科技大学, 武汉 430074;
2. 江西浩德实业有限公司, 南昌 330000

详细信息

作者简介:
邢思奇(1994-),女,硕士研究生,主要研究方向为城市污泥的脱水及其土地利用。1445736987@qq.com

通讯作者:
吴旭(1984-),男,博士,教授,主要研究方向为电化学环境工程。profxuwu@hust.edu.cn

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- 文章访问数: 170
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出版历程
- 收稿日期: 2019-09-10

COMPARATIVE STUDY ON LAND USE OF DEHYDRATED SLUDGE

1. Huazhong University of Science and Technology, Wuhan 430074, China;
2. Jiangxi Haode Industrial Co., Ltd, Nanchang 330000, China

摘要

摘要: 为了解脱水技术对后续污泥土地利用的影响，以3种典型脱水污泥为研究对象，分别与土壤等质量混合作为栽培基质用于黑麦草盆栽试验，通过植物种植后复合基质的有机质含量、pH、容重、孔隙率等理化性质的分析以及黑麦草生长状况的观测，研究经过不同脱水工艺的污泥对土壤改良效果的影响。采用土柱溶淋实验模拟1年降水，研究电解脱水污泥对环境的风险。结果表明经过电解脱水、机械压滤脱水后的污泥对土壤持水、保水能力有较好的效果；选用电解脱水污泥作为土壤改良剂，模拟1年自然降水后，对渗滤液中Cu、Cr、Cd、Pb、Ni等重金属含量进行测定，初步判定电解脱水污泥的污染风险较小。
- 污泥 /
- 脱水工艺 /
- 土地利用
Abstract: Three typical dewatered sludge were taken as research objects, and mixed with soil as the cultivation substrate for potted experiment of ryegrass, in order to understand the effect of dehydration on subsequent land use of sludge. By measuring the organic matter content, pH, bulk density, porosity and other physical and chemical properties of the composite matrix after planting, and observing the growth status of ryegrass, the influence of sludge through different dehydration processes on soil improvement was studied. Soil column leaching experiment was used to simulate 1 year’s precipitation, the environmental risk of electrolytic dewatering sludge was studied. The key research results were as follows: the dehydrated sludge by electrolysis and mechanical pressure filtration had good effect on soil water retention; the content of Cu, Cr, Cd, Pb, Ni in leachate was determined by using electrolytic dehydrated sludge as the soil conditioner after simulating 1 year’ natural precipitation, which proved electrolytic dewatered sludge pollution risk was low.
- sludge /
- dehydration process /
- land application

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参考文献(31)

ZHANG Y L, CAO M M, LV H, et al. Electrodeposited nanometer-size IrO₂/Ti electrodes with 0.3 mg IrO₂ cm^-2 for sludge dewatering electrolysers[J]. Electrochimica Acta, 2018, 265:507-513.

GUERRERO F, GASC J, HERN NDEZ-APAOLAZA L. Use of pine bark and sewage sludge compost as components of substrates for Pinus pinea and Cupressus arizonica production[J]. Journal of plant nutrition, 2002, 25(1):129-141.

张鹏,吴志超,陈绍伟,等.污水厂污泥作填埋场覆盖材料的试验研究[J].环境科学研究,2002, 15(2):45-47.

MCBRIDE M, EVANS L. Trace metal extractability in soils and uptake by bromegrass 20 years after sewage sludge application[J]. Canadian journal of soil science, 2002,82(3):323-333.

李艳霞,陈同斌,罗维,等.中国城市污泥有机质及养分含量与土地利用[J].生态学报,2003, 23(11):2464-2474.

LI Y F, YUAN X Z, WU Z B, et al. Enhancing the sludge dewaterability by electrolysis/electrocoagulation combined with zero-valent iron activated persulfate process[J]. Chemical Engineering Journal, 2016, 303:636-645.

NAVAB-DANESHMAND T, BETON R, HILL R J, et al. Impact of joule heating and pH on biosolids electro-dewatering[J]. Environmental Science and Technology, 2015, 49(9):5417-5424.

CAO B D, ZHANG W J, DU Y J, et al. Compartmentalization of extracellular polymeric substances (EPS) solubilization and cake microstructure in relation to wastewater sludge dewatering behavior assisted by horizontal electric field:effect of operating conditions[J]. Water Research, 2018, 130:363-375.

戴晓虎.我国城镇污泥处理处置现状及思考[J].给水排水,2012,38(2):1-5.

武淑文.城市污泥资源化利用研究进展田[J].广西轻工业,2009(4):113-114.

申荣艳,骆永明,滕应,等.城市污泥的污染现状及其土地利用评价[J].土壤,2006, 38(5):517-524.

LV H, XING S Q, LIU D G, et al. Soluble metal ions migration and distribution in sludge electro-dewatering[J]. Environmental Research, 2020,180:108862.

LV H, LIU D G, XING S Q, et al. The effects of aging for improving wastewater sludge electro-dewatering performances[J]. Journal of Industrial and Engineering Chemistry, 2019,80:647-655.

刘纯甫. 脱水污泥对盐碱化土壤改良效果及污染物分析[D].哈尔滨:哈尔滨工业大学,2012.

刘继东,任杰,陈娟,等.酸雨淋溶条件下赤泥中重金属在土壤中的迁移特性及其潜在危害[J].农业环境科学学报,2017, 36(1):76-84.

郭兴. 3种观赏草对盐碱土理化性质的影响[J].安徽农业科学,201846(21):133-136,157.

中国国家标准化管理委员会.城镇污水处理厂污泥处置园林绿化用泥质[S]. 2009-04-13.

赵东晓,董亚茹,杜建勋,等.盐碱胁迫对三个品种桑树种子萌发的影响[J].山东农业科学,2017,49(7):49-55.

土壤板结的7大原因[J].长江蔬菜,2019(3):62.

DEBOSZ K, PETERSEN S O, KURE L K, et al. Evaluating effects of sewage sludge and household compost on soil physical, chemical and microbiological properties[J]. Applied Soil Ecology, 2002, 19(3):237-248.

张水英,张辉,甘一萍,等.城市污水处理厂污泥石灰稳定干化工艺应用研究[J].净水技术,2009,28(1):75-77.

LV H, LIU D G, ZHANG Y L, et al. Effects of temperature variation on wastewater sludge electro-dewatering[J]. Journal of Cleaner Production, 2019, 214:873-880.

LV H, WANG F, LIU D G, et al. Effects of piecewise electric field operation on sludge dewatering:phenomena and mathematical model[J]. Industrial and Engineering Chemistry Research, 2018, 57(37):12468-12477.

张宝峰,曾路生,李俊良,等.优化施肥处理下设施菜地土壤容重与孔隙度的变化[J].中国农学通报,2003, 29(32):309-314.

高岩,申培丽,王海朋,等.含海藻酸有机水溶肥料对设施大棚土壤容重与孔隙度影响的研究[J].种子科技,2018,36(10):97-100.

MAYS D A, TERMAN G L, DUGGAN J C. Municipal compost:effect on crop yield and soil properties[J]. Journal of Environmental Quality, 1973, 2(1):89-92.

周学武,孙岱生,房建国,等.利用矿山固体废弃物(粉煤灰、淤泥及污泥)改良矿山退化土地及种植实验[J].资源产业,2005,7(3):61-64.

郑应泽.土壤酸碱度对农作物生长的影响[J].玉溪师专学报,1994,10(3/4):64

-67.

MARTIN R, BOBBY A S. Structure and Organic Matter Storage in Agricultural Soils[J]. CRC Press, Boca Raton, FL 1996.

ZEBARTH B J,NEILSEN G H,HOUGE E,et al. Influence of organic waste amendments on selected soil physical and chemical properties[J]. Canadian Journal of Soil Science, 1999, 79:501-504.

FRANZLUEBBERS A J. Water infiltration and soil structure related to organic matter and its stratification with depth[J]. Soil & Tillage Research,2002, 66(2):197-205.

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