Laboratory tests with marine flatfish were conducted to investigate associations among gene expression, higher biological responses and wastewater effluent exposure. In the present study, male hornyhead turbot (Pleuronichthys verticalis) were exposed to environmentally realistic (0.5%) and higher (5%) concentrations of chemically enhanced advanced-primary (PL) and full-secondary treated (HTP) e...

This paper presents the genotoxic effect of effluent from a pharmaceutical plant in Ota, Ogun state, Nigeria using the rat bone-marrow metaphase chromosome assay. The effluent was examined for some standard physical and chemical properties. Rats were intraperitoneally exposed to 1%, 5%, 10%, 25% and 50% (v/v, effluent/distilled water) concentrations of the effluent for 48 hr. Distilled water an...

The 1-MDS Virosorb filter and the 50S and 30S Zeta-plus filters, all with a net positive charge, were compared with the negatively charged Filterite filter for concentration of naturally occurring coliphages and animal viruses from sewage effluent. When Filterite filters were used, the effluent was adjusted to pH 3.5 and AlCl3 was added before filtration to facilitate virus adsorption. No adjus...

The coconut Rhinoceros beetle (Oryctes rhinoceros) is one of the most damaging insect to coconut palms in India. The experimental study on the growth response of 3 instar larvae of Oryctes rhinoceros infesting the coconut trees. The LC50/96 hours value for the larvae of Oryctes rhinoceros were 29.5% for neem cake powder, 24.5% for neem oil and 14.9% for distillery effluent respectively. In the ...

A highly-loaded constructed wetland (up to 44±21gCODm(-2)d(-1)) was connected to a bioelectrochemical system (BES) to produce hydrogen peroxide for disinfection purposes. The anode delivered a current from the wetland effluent up to 3.5Am(-2) (maximum 62% anodic efficiency) but was limited in the supply of organic carbon. Hydrogen peroxide could be produced in situ in wetland effluent. Producti...

Food processing units is a diversified activity consists of processing of perishable items such as fruit and vegetables, meat and poultry etc. into a various products without the loss of nutritional properties. Liquid waste is generated more in the Food processing units by means of washing of raw materials, pulping, crushing and canning operations. Hence, it is necessary to treat the effluent f...

Investigations were carried out to determine the composition of fungal flora in the studied sites. Samples of the raw effluent were collected along the flow channel and the retention pond. Water samples were also collected at the discharge point and up and down stream of the river from the discharge point. The samples were spinned at a speed of 250rpm for 10minutes and spread inoculated the dep...

in this survey, with the main objective of studying final effluent treat ability of pars paper industries, the quantitative and qualitative characteristics of the effluent were firstly determined, which showed a min. and max. rate of 1350 and 1800 m3/hr, with 1400 mg/l and 839.5 mg/l respectively for cod and tss, as the main contaminants. also cod and tss population equivalents were calculated ...

A combined approach of treating domestic wastewater using microbial fuel cell (MFC) and membrane bioreactor (MBR) has been developed as a promising and reliable technology of wastewater treatment. Treatment of wastewater in a single stage MFC has limitation to achieve the required treatment efficiency and utilize the effluent for irrigation or any other possible reuse without further treatment....