Journal of Japan Society on Water Environment 

About: Journal of Japan Society on Water Environment is an academic journal published by Japan Society on Water Environment. The journal publishes majorly in the area(s): Water quality & Wastewater. It has an ISSN identifier of 0916-8958. Over the lifetime, 1777 publications have been published receiving 6468 citations. The journal is also known as: Journal of Japan Society on Water Environment.

Inhibition of anaerobic digestion by mercury

Abstract: 嫌気性消化プロセスに対する水銀の阻害作用について,回分実験により検討を行なった。まず,水銀の阻害作用に対して硫酸還元反応がいかなる役割を果たしているのかという点について調べてみると,この反応自体が高い水銀耐性を示し,更に反応の結果生成される硫化物が水銀を無毒化するという特性を持っていることから,この反応はグルコース分解の諸反応を水銀の毒性から予め保護したり,それらの阻害からの回復に大きく寄与していることが結論づけられた。次に,グルコース分解や通常の嫌気性消化の主要な分解中間体である三種類のVFAからのメタン生成反応に対する水銀の影響を調べたところ,n-酪酸分解>酢酸分解>プロピオン酸分解の順に水銀の阻害作用に対する抵抗力(回復力)が大きく,また水素からのメタン生成>酢酸からのメタン生成の順に水銀の阻害作用に対する抵抗力(回復力)が大きいことが結論づけられた。

Constituents of Organic Pollutants in Leachates from Different Types of Landfill Sites and Their Fate in the Treatment Processes.

Abstract: Constituents of oraganic pollutants in leachates from different types of landfill sites were measured by gas chromatograph - mass spectrometry (GC/MS). The leachates contained various volatile and semi-volatile compounds, some of which were regarded as endocrine disrupting chemicals. The leachate from a site filled with more plastic waste contained more micropollutants such as plastic additives than the leachte from a site filled mainly with incinerator ash waste. These micropollutants were decreased in their concentrations along the treatment processes of the leachates. Leachates from least controlled sites where only non hazardous industrial wastes can be dumped legally also contained micropollutants. The changes in the concentration along with the age of the sites were explained by water - octanol partitioning coefficient.

Estimation on the Runoff Amounts of Pesticides Applied after Transplanting of Rice Plant by Drainage River.

Abstract: The runoff loadings and characteristics of pesticides applied to paddy fields after transplanting of rice plant were estimated by means of analysis of pesticides in drainage river water in weekly and at the rainfall events.The largest loadings of herbicides were found between one and two weeks after transplanting of rice plant. On the other hand, the largest loadings of insecticides were found at about ten days later than that of herbicides.The runoff loadings of herbicides during one rainfall event ranged 20 to 25% of total runoff amounts. Therefore, the runoff investigation of pesticides in river water at and after the rainfall are very important for estimation of pesticides runoff from agricultural fields to drainage river.The runoff characteristics of insecticides and herbicides were differed, and it was recognized that the runoff loadings of insecticides were decreased more rapidly than herbicides at the rainfall event.The runoff rates of pesticides were ranged from 25% for fenobucarb to 0.02% for fenitrothion.From this results concerned in rainfall event, the runoff rates of pesticides from agricultural fields to river were more higher than that of the previous literature.