Wastewater Management in Tropical Monsoon Climates:Sanitary and Ecological Implications

URI http://harp.lib.hiroshima-u.ac.jp/kure-nct/metadata/10981
File
Title
Wastewater Management in Tropical Monsoon Climates:Sanitary and Ecological Implications
Title Alternative
熱帯モンスーン気候に適した廃水管理システム:衛生学的ならびに生態学的な諸問題
Author
氏名 Takeuchi Juni
ヨミ タケウチ ジュンイチ
別名 竹内 準一
氏名 Giri Rabindra Raj
ヨミ ギリ ラビンドラ ラジャ
別名 ギリ ラビンドラ ラジャ
Subject
greywater
sewage works
sanitation
microorganisms
water quality
Abstract

Since Thai people have traditionally used Thai-style toilets, wastewater in Bangkok, Thailand, is characterized by its water quality referred to as greywater without feces contamination. The water tends to be easily decomposed by microorganisms in sewers under hot and stagnant conditions. The contamination with night soil affected microbial fauna and flora of activated sludge formed in sewage works, as being suggested by simulated laboratory experiments. Nitrification was also promoted by the “dilution effect” with rain, alongside the “shading effect” of blacken particles of tropical fungal origins suspended in the discharged water courses. These findings suggest that the better solution of wastewater management in the monsoon tropical climates is not western-style sewage treatment but region-specific alternative options such as stabilization ponds with fish culture and composting toilets for agricultural manure use.

Journal Title
呉工業高等専門学校研究報告
Issue
74
Spage
19
Epage
26
Published Date
2012
Publisher
呉工業高等専門学校
ISSN
0286-4037
Language
eng
NIIType
Departmental Bulletin Paper
Text Version
出版社版
Old URI
Set
kure-nct