Organic Pollution Loads by Home-made Soaps Made from Used Frying Oil

Autor:	Ryuichi Sudo, Akiko Utsunomiya, Mikio Kikuchi, Yuhei Inamori, Sanae Yoshikawa, Mitsumasa Okada
Rok vydání:	1996
Předmět:	Pollutant Pollution Chemistry media_common.quotation_subject Environmental engineering medicine Dryness medicine.symptom media_common
Zdroj:	Journal of Japan Society on Water Environment. 19:412-416
ISSN:	1881-3690 0916-8958
DOI:	10.2965/jswe.19.412
Popis:	Determination of BOD, COD, TOC, T-N and T-P in the homemade- and market-soap were performed by 6 laboratories to examine analytical precision and to know organic pollutant loads. Coefficient of variance of measurements for BOD, COD and TOC was 3 to 27%, 6 to 38%, 2.7 to 17%, respectively. These results indicated that there were no significant among them. The organic pollutant load of pudding like soap per dryness weight were similar those solid soap. The load of powder soap made in miniplant was lowest value. The difference of BOD per organic substance unitweight was not found in the method of process and shape of soap. Each load of T-N and T-P was negligible level.
Databáze:	OpenAIRE
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