--------------------------------------------------------ABSTRACT----------------------------------------------------------Pilot plant composed of fabric filters integrated with the decentralized treatment plant ZECUwas tested for its ability to remove the suspended solids and organic matters presented as TSS, CODt and CODs from wastewater. The filters were made from scrim polyester non-woven fa...

Most of the slaughterhouses in the state of Kerala (India) do not have proper and effective effluent treatment facilities. Collection of blood and separation of manure to reduce the very high organic load of the effluent are also not practiced. As a result, large volumes of extremely complex effluents with high content of fat, grease, and protein are discharged into land or water bodies causing...

The monitoring of water colour parameters can provide an important diagnostic tool for the assessment of aquatic ecosystem condition. Remote sensing has long been used to effectively monitor chlorophyll concentrations in open ocean systems; however, operational monitoring in coastal and estuarine areas has been limited because of the inherent complexities of coastal systems, and the coarse spec...

Copyright © 2017 by The Geochemical Society of Japan. rest of the released 137Cs went out to the ocean. The radioactive aerosols were scavenged from the atmosphere to the ocean surface by dry and wet depositions, with the result that the deposition has increased the concentration of radio Cs in the surface seawater extensively (Aoyama et al., 2016; Kaeriyama, 2016; and references therein). Alth...

Effluents with high silica content can exceed the discharge limits and/or limit the application of reuse treatments based on reverse osmosis membranes. In these cases, silica removal is usually carried out in the effluent by coagulation. In this work, silica is removed from process waters in dissolved air flotation (DAF) units used as internal treatments. It is hypothesized that the presence of...

This work investigated the feasibility of treating micro-polluted surface water for drinking water production with a bio-diatomite dynamic membrane reactor (BDDMR) at lab-scale in continuous-flow mode. Results indicate that the BDDMR was effective in removing COD(Mn), DOC, UV(254), NH(3)-N and trihalomethanes' formation potential (THMFP) at a hydraulic retention time (HRT) of 3.5h due to its hi...

A commercial nonylphenol (NP) reagent was separated into 14 fractions, NP1 to NP14 using a gas chromatograph equipped with a preparative fraction collector (GC-PFC). The identifi cation of the major components of 14 fractions was attempted by analysis of their nuclear magnetic resonance (NMR) spectra, and the estrogenicity of the isomers was tested in a recombinant yeast screen system. Eleven s...

This project documents the impact of a porous asphalt overlay on the quality of highway stormwater runoff. A porous asphalt overlay, also known as a permeable friction course (PFC) or open graded friction course (OGFC), is a layer of porous asphalt approximately 50 mm thick which is often applied on top of conventional asphalt highways to enhance safety and reduce noise. The quality of stormwat...

The Curonian Lagoon is a unique system that temporary reservoir of water, accumulating about 62% the suspended solids in river runoff. average activity plutonium particulate matter water Neris River was 0.26±0.02 Bq/kg, and 137Cs ranged from 23±8 to 49±12 Bq/kg. flux dissolved species estimated be (78±61) × 109 Bq/year. Preliminary estimates indicate annual input 239,240Pu Neman into 0.9 GBq, w...

The quality control of wastewater treatments was monitored using selected novel and classical physicochemical and microbiological indicators, and the associations of the treatments with the effluents was analyzed. The microbiological indicators monitored were heterotrophic plate count (HPC), total coliforms (TC), fecal coliforms (FC), fecal streptococci (FS), sulfite-reducing clostridia (SRC), ...