Resources and Conservation最新文献_第8页

Co-Recycling of fly ash and poultry manure in nutrient-deficient sandy soil 缺乏养分的沙质土壤中粉煤灰与禽粪的共循环利用

Resources and Conservation Pub Date : 1987-02-01 DOI: 10.1016/0166-3097(87)90071-X

J.W.C. Wong, M.H. Wongz

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引用次数: 18

Fuel gas production of agricultural residues and municipal solid wastes by low-capital-cost batch digestion - a review 低成本间歇消化法生产农业废弃物和城市固体废弃物燃料气研究进展

Resources and Conservation Pub Date : 1987-02-01 DOI: 10.1016/0166-3097(87)90052-6

Donald L. Wise

引用次数: 4

Controllable techniques and installations for organic-refuse composting 有机垃圾堆肥的可控技术和装置

Resources and Conservation Pub Date : 1987-02-01 DOI: 10.1016/0166-3097(87)90060-5

Caijian Cheng, Li Guo Zhen

引用次数: 4

Decomposition of organic wastes added to colliery spoils - their nitrogen, phosphorus and heavy metal transformation 分解添加到煤矿废渣中的有机废物——它们的氮、磷和重金属的转化

Resources and Conservation Pub Date : 1987-02-01 DOI: 10.1016/0166-3097(87)90072-1

F.Y. Tam

{"title":"Decomposition of organic wastes added to colliery spoils - their nitrogen, phosphorus and heavy metal transformation","authors":"F.Y. Tam","doi":"10.1016/0166-3097(87)90072-1","DOIUrl":"10.1016/0166-3097(87)90072-1","url":null,"abstract":"<div>Laboratory incubation studies (6 weeks at 26°C) were conducted to analyze the changes of chemical properties in three kinds of colliery spoils after addition of two sewage sludges (Dewmus and Yorkshire Bounty) and two animal manures (Chiguano and Poultry Manure). In the acidic Whitwood spoils, the nitrification was inhibited and NH4+N became the dominant form of nitrogen. The neutral Thorne spoil had the quickest nitrification followed by Ashington. Addition of organic wastes significantly improved the nitrogen status of all spoils and the rate of nitrification was in the order of Poultry Manure > Chiguano > Dewmus > Yorkshire Bounty. Inorganic nitrogen fertilizer, ammonium sulphate, although supplying the highest amount of NH4+N to spoils, increased nitrate nitrogen less than some of the organic wastes. The organic waste additions caused an immediate and significant increase in P content. Although the waste effect decreased as incubation proceeded, higher P content was found in spoil with waste amendments than in the control throughout incubation. Total nitrogen and phosphorus mineralization was relatively low in all treatments. This showed that microbial immobilization might be important.Addition of animal manures significantly raised the pH of the two acidic spoils. Similar to the changes of P content, pH also followed a slight and gradual decline during incubation. Results further indicated that waste addition did not raise the spoil heavy-metal contents; it might even reduce the heavy-metal toxicities of spoil samples. This study shows that organic wastes are slow-releasing and complete fertilizers but that the degree of mineralization depends on the chemical nature of organic fraction of individual waste.</div>","PeriodicalId":101079,"journal":{"name":"Resources and Conservation","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1987-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0166-3097(87)90072-1","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90795441","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Effect of in-process treatment on contaminant levels during the recycling of paper-mill water streams 造纸废水循环利用过程中处理对污染物水平的影响

Resources and Conservation Pub Date : 1986-12-01 DOI: 10.1016/0166-3097(86)90003-9

N.J. Sell, J.V. Maxham

引用次数: 0

A practical village biogas system for wastes and agricultural residues 一个实用的乡村沼气系统，用于废物和农业残留物

Resources and Conservation Pub Date : 1986-12-01 DOI: 10.1016/0166-3097(86)90004-0

D. Wise, A. Leuschner, P. F. Levy, M. Sharaf

引用次数: 3

A practical village biogas system for wastes and agricultural residues 一个实用的乡村沼气系统，用于废物和农业残留物

Resources and Conservation Pub Date : 1986-12-01 DOI: 10.1016/0166-3097(86)90004-0

Donald L. Wise, Alfred P. Leuschner, Peter F. Levy, Mostafa A. Sharaf

引用次数: 3

Low-grade and manufactured aggregates — A review of prospects for utilisation 低品位和成品骨料-利用前景综述

Resources and Conservation Pub Date : 1986-12-01 DOI: 10.1016/0166-3097(86)90002-7

R.J. Collins

引用次数: 3

Potential use of sludge ash as construction material 污泥灰作为建筑材料的潜在用途

Resources and Conservation Pub Date : 1986-12-01 DOI: 10.1016/0166-3097(86)90006-4

Joo-Hwa Tay

引用次数: 23

Effect of in-process treatment on contaminant levels during the recycling of paper-mill water streams 造纸废水循环利用过程中处理对污染物水平的影响

Resources and Conservation Pub Date : 1986-12-01 DOI: 10.1016/0166-3097(86)90003-9

N. J. Sell, J. V. Maxham

引用次数: 0