書誌事項
- タイトル別名
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- Polyelectrolyte adsorption and its effect on dewatering characteristics of night soil treatment sludge.
- シニョウ ショリ オデイ ノ ユウキ コウブンシ ギョウシュウザイ ショリ ニ
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The effect of adsorption of polyelectrolyte on dewatering characteristics was investigated for night soil treatment sludge.<BR>The results obtained were as follows.<BR>1) Under an apparently saturated condition, the adsorbed weight of polyelectrolyte per unit weight of suspended solid (Xw*) was constant for polyelectrolytes of low-molecular weight, but it came to decrease with increasing molecular weight for those of higher molecular weight.<BR>2) Under the apparently saturated condition, the adsorbed charge of polyelectrolyte per unit weight of suspended solid showed a similar dependency on the molecular weight to Xw*.<BR>3) Dewatering characteristics with high-molecular weight polyelectrolyte was optimum at break point, i.e., a polyelectrolyte dosage above which residual polyelectrolyte was observed in centrifugally separated water. At the break point a large number of sites, to which cationic polyelectrolyte molecules could adsorb, remained on the suspended solid surface.<BR>4) Dewatering by using both a low-molecular weight cationic polyelectrolyte and a high-molecular weight anionic polyelectrolyte in series was optimum at the break point dosages for each polyelectrolyte. The more a sludge which was treated with a cationic polyelectrolyte amount less than the break point dosage had adsorbed cationic charge, the lower the moisture ratio became for the dewatered cake.
収録刊行物
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- 化学工学論文集
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化学工学論文集 12 (6), 694-700, 1986
公益社団法人 化学工学会
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詳細情報 詳細情報について
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- CRID
- 1390282679484593920
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- NII論文ID
- 130000869135
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- NII書誌ID
- AN00037234
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- ISSN
- 13499203
- 0386216X
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- NDL書誌ID
- 3101280
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
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