報告書番号

480015

タイトル（和文）

家畜廃棄物利用のための処理処分－マイクロ波利用による活性炭化物の製造とその特性－

タイトル（英文）

STUDIES ON THE DISPOSAL OF LIVESTOCK WASTE FOR ITS RECYCLIC USE-PRODUCTION OF THE CRUDE ACTIVATED CARBON OF LIVESTOCK EXCREMENT BY IRRADIATION OF MICRO-WAVE AND ITS CHARACTERISTIC-

概要 （図表や脚注は「報告書全文」に掲載しております）

畜産廃棄物を資源化し再利用を図ることは省資源と同時に環境保全に必要である。本研究は当所開発の畜産廃棄物のクローズド処理システムの一環で家畜飼養場の廃水浄化と悪臭除去などを目的として家畜糞固分を炭化して活性炭とする処理方法の開発ならびに炭化物の特性などについて検討したものである。試作炭化装置はマイクロ波加熱方式を採用した。炭化材料には乳牛糞乾燥固分を用いた。粉末固分と固形化固分の炭素率は前者が４１％，後者は２．１％，吸着能は標準活性炭比糖密脱色強度と沃度吸着強度について，前者は２９．２と２８．８，後者は１９．４と４３．２であった。家畜糞固分活性炭は廃水のろ材，悪臭吸着材として有効であることが確認された。炭化装置の実用化には炭化材料充填容器の素材の選択，装置運転の自動化などの改良課題が残されている。

概要 （英文）

TO REGENERATE THE LIVESTOCK WASTE AS A RESOURCE WILL HELP BOOST ENERGY SAVING,AT THE SAME TIME PREVENTING ENVIRONMENTAL POLLUTION.THE RESEARCH DEALS WITH THE DEVELOPMENT OF A TREATMENT SYSTEM WHEREBY SOLID MATTERS IN LIVESTOCK EXCREMENTS ARE TURNED BY CARBONIZATION INTO ACTIVATED CARBON,AND ALSO WITH PERFORMANCE OF CARBIDES THUS FORMED.THE AIM OF THE RESEARCH INCLUDES PURIFICATION AND DEODORIZATION OF WASTE WATER CONTAINING DROPPINGS OF LIVESTOCK. THE RESULTS ARE ASFOLLOWINGS; 1.THE VACCUM CERAMIC CARBONIZER DEVELOPED TENTATIVELY IS CAPABLE OF CARBONIZING TREATMENT BY ROTATING A CERAMIC CARBONIZATION CANIN A VACCUM OVEN TO STIR UP ITS CONTENT. 2.THE CARBONIZING MATERIALS USED IN THE EXPERIMENTS INCLUDED PULVERIZED AND CONPRESSION MOLDED SOLIDS OF DRIED MILK COW DUNG.CARBONIZATION TREATMENT OF THESE YIELDED THE FOLLOWING RESULTS. (1)IN CARBONIZATION OF THE PULVERIZED SOLID,THE FASTEST CARBONIZATION TREATMENT,ACHIEVED ABOUT 30 MINUTES AFTER IRRADIATION,WAS CARRIED OUT BY STIRRING UP THE SOLID CONTENT OF THE CARBONIZATION CAN WHILE MAKING VARIABLE IRRADIATION KEEPING THE DEGREE OF VACCUM AT 100MMHG AND MICROWAVE POWER AT 0.7-0.4KW (2)BY MAKING TREATMENT OF MOLDEDSOLIDS WITH COMPRESSION DENSITIES OF 0.5 AND 0.9 RESPECTIVELY, AT A DEGREE OF VACCUM OF 90MMHG AND MICROWAVE POWER OF 0.9KW, IT WAS CLARIFIEDTHAT THE MOLDED SOLID HAVING A COMPRESSION DENSITY OF 0.5 HAD A FASTERCARBONIZING TREATMENT TIME. 3.THE HIGHEST CARBON CONTENT OF 41% WAS ACHIEVED BY 30 MINUTES IRRADIATION. AS FOR THE RATIO OF ABSORPTIVE POWER OF CARBIDES FORMED TO THAT OF STANDARD ACTIVATED CARBON, SET AT 100, THE MOLASSES DECOLORIZING STRENGTH TURNED OUT TO BE 17 29 AND THE IODINE ABSORPTION STRENGTH 29 45. THE ACTIVATE CARBON THUS FORMED CAN BE UTILIZED AS A FILTERING AGENT FOR WATER PURIFICATION.

報告者

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