Fish are a rich source of proteins beneficial to heart and eyes. Being perishable, they are processed immediately after collection. Water consumption in fish-processing industry is very large and high strength wastewaters rich in salts, ammoniacal nitrogen (NH3-N), organic load are generated which cannot be discharged without any treatment. The present investigation describes development of bio...

Wastewater from the fertiliser industry is characterised by high chloride concentration, normally varying between 60 and 76 g/ l. Experiments with biological denitrification were performed in laboratory-scale ‘fill and draw’ reactors with synthetic fertiliser wastewater, with chloride concentrations up to 96.7 g Cl/l at 37°C; the pH was controlled in the range 6.8 to 7.2. Potassium acetate was ...

Waste water, spent solvents, and spent process solutions are the major waste streams generated in large volumes daily in electroplating plants. These waste streams must be sigdicantly reduced to prevent pollution and reduce end-of-pipe treatment cost. In this endeavor, a computer-aided tool, WMEP-ADVISOR, is developed for source reduction by resorting to artificial intelligence techniques. This...

Since the present researches on pollution control for textile printing & dyeing industry are mainly focused on qualitative description up to now, instead of special quantitative analysis, based on the census data of pollution sources, this paper adopts literature collection method and single-factor variance components method for continuous variables to identify the factors influencing cost for ...

Considering both the volume and the effluent composition, the textile industry wastewater is rated as the most polluting among all industrial sectors. Important pollutants are present in textile effluents; they are mainly recalcitrant organics, colour, toxicants and inhibitory compounds (Khelifi et al., 2008). Textile industries however, have caused serious environmental problems because of the...

A surface-enhanced Raman scattering (SERS) detection method for environmental copper ions (Cu2+) was developed according to the vibrational spectral change of diethyldithiocarbamate (DDTC) on gold nanoparticles (AuNPs). The ultraviolet-visible (UV-Vis) absorption spectra indicated that DDTC formed a complex with Cu2+, showing a prominent peak at ~450 nm. We found Raman spectral changes in DDTC ...