Phytoremediation, the use of plants and their associated microbes for environmental cleanup, has gained acceptance in the past 10 years as a cost-effective, noninvasive alternative or complementary technology for engineering-based remediation methods. Plants can be used for pollutant stabilization, extraction, degradation or volatilization.
Considering the increasing urban population and the resulting urban liquid waste, an attempt has been made to ascertain the quality of the Pondicherry coastal water. Four sampling stations-two on the 1 fathom line and two on the 5 fathom line were fixed. The results revealed that the total coliform bacterial population showed seasonal variation viz. between post and pre-monsoon periods.
A split plot field experiment was conducted to study the comparative effect of sewage wastewater and ground water and of six doses of basal nitrogen on the performance of triticale. Sewage wastewater irrigation resulted in increased growth and yield of the crop. Protein and carbohydrate yields were also increased under wastewater irrigation.
The effect of an organophosphorus (OP) insecticide, methyl parathion on the behaviour of a freshwater air breathing teleost fish, the Climbing perch, Anabas testudineus was studied. The breathing rate, rate of feeding, performance of sustained swimming behaviour against water current and the learning ability were severely curtailed in the fish exposed to 5 mg/L of methyl parathion.
A study to assess the supply of drinking water quality in Delhi, by examining the various physico-chemical parameters, namely pH, conductivity, TDS, SS, DO, BOD, COD, calcium and magnesium hardness, total hardness, alkalinity, salinity, turbidity of the pre-treated water samples from Bhagirathi, Wazirabad, Chandrawal, Haiderpur and Okhala Water Treatment Plants has been carried out.
In the present investigation, an attempt has been made to study the genotoxic effect of commonly used pesticides of South India, like 2,4-D, lindane, sevin and phosphamidon, in the human lymphocytes by comet assay and chromosomal analysis.
Hydrochemical studies were performed by collecting surface and bottom water sampled from 10 stations for a period of one year from February 1999 to January 2000 in a fresh water lake, Vellayani lake, in Thiruvanathapuram district, the capital city of Kerala. Marked spatial and temporal variations were noticed in majority of abiotic parameters.
Two drinking water lakes of Hyderabad - Osman Sagar and Mir Alam, were studied for their chemistry for two years (1977-78). Mir Alam, the older of the two, showed higher silicate content. Dissolved component formed 91-27% of the total silicate content in these lakes.
Recently, biodiesel has been receiving increasing attention due to its less polluting nature and also because it is a renewable energy resource. Mostly, biodiesel is prepared from edible oils like soybean, rapeseed and sunflower through out the world. Attempts have been made for producing biodiesel with non edible oils like karanja and jatropha especially in India.
The study is to analyse the solid waste disposal system and suggest suitable modification in the present solid waste management practice in city and find out the gap and deficiencies and suggest the r
