DEVELOPMENT OF CLOTHES WASHING SYSTEM FOR DECREASING IN ENVIRONMENTAL LOADING

开发减少环境负荷的洗衣系统

• 批准号: 06303015
• 负责人: TAGAYA Hisako
• 金额: $ 9.34万
• 依托单位: SHIGA UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Co-operative Research (A)
• 财政年份: 1994
• 资助国家: 日本
• 起止时间: 1994 至 1995
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-06303015/
• 关键词: Environmental Loading; Biodegradability; Detergent; Corynomicolic acid; Detergency; Aging; Foam; Binary solvents; 界面活性剤; エイジング; 液晶; 泡沫洗浄; 液晶形式; バイオサーファクタント; 生分解性; 非イオン界面活性剤; 汚れの分散・凝集; 界面活性剤除去速度

Detergents, washing methods, purification for wastewater and dry cleaning solvent were examined for decreasing in environmental loading due to washing clothes.1.The biodegradability of four household detergents contained natural surfactants was observed with river die-a way test and biochemical oxygen demand (BOD) test. The biodegradability and the degree of environmental load of their detergents depended upon the kind and content of surfactants. Five corynomycolic acids with alkyl chain length were synthesized and the relation between chemical structure and surface active properties was determined. With increase in the length of the alkyl chain, the values of surface and interfacial tension at critical micelle concentration (cmc) decreased and became less than that of synthetic surfactants for corynomcolic acid carbon numbers exceeding 16.2.The removal of oily soil at low concentration of SDS was found to be governed by formation of a molecular complex between the oily molecule and SD … More S.An effect of aging on detergency of fatty soil and protein soil coexisting on the cloths was investigated. Lard and egg white were used as the model soil, respectively. The results showed that the detergency of the soils on cotton cloths decreased as the aging period increased, while little decrease was seen on polyester cloths. The effects of the soil type and the shape of substrate on the detergency of foam washing were arranged, and the process of the washing by the foam film movement was observed using the graphic computer system.3.Many types of adsorption were tried to remove POE (nonionic surfactant) from aq.solution. The amount of POE was determination by using electrochemical analysis. A method for the determination of the critical coagulation concentration as a measure of the stability of particles in wastewater was studied. The condition for evaluating the stability by the sedimentation method was determined. The conditions to determine the fine particles suitable for removal of surfactants in washing wastewater were investigated by measurement of the adsorption-desorption rate with the stopped-flow method as well as measurement of the equilibrium adsorption amount of SDS to and from nylon 12, keratin powder and polystirene latex.4.Soiling properties to staple fiber of Fe_2O_3・H_2O in binary solvents (petroleum/alcohol) have been investigated. In the addition of only 5% alcohol to petroleum solvent, the amount of adhesion of Fe_2O_3・H_2O decreased remarkably. Less

从洗涤剂种类、洗涤方法、废水净化和干洗溶剂等方面探讨了如何降低洗涤衣物的环境负荷。1.采用河涌法和生化需氧量（BOD）法对4种天然表面活性剂家用洗涤剂的生物降解性进行了研究。表面活性剂的种类和含量决定了其洗涤剂的生物降解性和环境负荷程度。合成了五种具有烷基链长的棒状链霉菌酸，并测定了其化学结构与表面活性的关系。随着烷基链长度的增加，表面张力和界面张力在临界胶束浓度（cmc）下逐渐减小，当corynomcolic acid的碳数超过16.2时，其值小于合成表面活性剂的值 ...更多信息 研究了老化对同时存在于织物上的脂肪污垢和蛋白污垢去污力的影响。分别以猪油和鸡蛋白色为模型土。结果表明，污垢对棉布的去污力随老化时间的延长而下降，对涤纶布的去污力则无明显下降。整理了土壤类型和基质形状对泡沫洗涤去污力的影响，并利用计算机图形系统观察了泡沫膜运动的洗涤过程。3.尝试了多种吸附方式去除水中的非离子表面活性剂POE。采用电化学分析法测定了POE的含量。研究了一种测定临界混凝浓度的方法，该浓度可作为衡量废水中颗粒物稳定性的指标。确定了沉降法评价稳定性的条件。通过停流法测定吸附-脱附速率和测定尼龙12对SDS的平衡吸附量，4.Fe_2O_3·H_2O在二元溶剂中对短纤维的沾污性能（石油/酒精）进行了研究。在石油溶剂中加入5%的乙醇后，Fe_2O_3·H_2O的附着量显著降低。少

项目成果

Tomiko Fujii: "Syntheses and Properties of Corynomycolic Acids as a Model of Biosurfactant" 8th International Conference on Surfue and Colloid Science. 220- (1994)

Tomiko Fujii：“棒状菌酸作为生物表面活性剂模型的合成和特性”第八届国际表面活性剂和胶体科学会议。

多賀谷 久子: "クロマトグラフ法による洗浄機構の研究II油性汚れの洗浄機構に及ぼす基質の影響" 日本化学会誌. (3). 241-245 (1996)

Hisako Tagaya：“使用色谱法的清洁机理研究II。底物对油基污渍清洁机理的影响”日本化学学会杂志（3）241-245（1996）。

多賀谷久子: "クロマトグラフ法による洗浄機構の研究II油性汚れの洗浄機構に及ぼす基質の影響" 日本化学会誌. (No.3). 241-245 (1996)

Hisako Tagaya：“使用色谱法的清洁机制研究II。底物对油性污渍清洁机制的影响”日本化学学会杂志（第3期）（1996年）。

山田 泉: "汚れ落ちのメカニズム" 甲南女子大学研究紀要. 31. 85-97 (1995)

山田泉：“污垢去除机制”甲南女子大学研究通报 31. 85-97 (1995)。

Hisako Tagaya: "The Influence of Substrate on the Mechanism for Oily Soil Removal" The Chemical Society of Japan. No.3. 241-245 (1996)

Hisako Tagaya：“基质对油污去除机制的影响”日本化学会。