Majority of residential units and small-scale commercial operators in India dispose wastewater either onsite or into the public drainage systems, without paying any attention to the public health and environmental impacts. Need for high investments and the requirement for large operational space are the reasons often quoted against the installation of a proper wastewater treatment unit. This communication presents a viable and cost-effective technology using coir geotextile, for the
removal of organic matter from wastewater. Coir geotextile
The results of trend analyses of the discharge data of four rivers in northwestern Himalaya, namely Beas, Chenab, Ravi and Satluj, are presented here and the impact of climate change in the last century is discussed. In the case of Satluj river, studies indicate an episodic variation in discharge in all three seasons on a longer timescale of about 82 years (1922
At the current rate of use the crude oil reserves of the world are predicted to deplete in about 40 years. Therefore, it has become necessary to find and devise methods of processing a renewable raw material for conversion into transportation fuel. Some countries are manufacturing ethanol from sugarcane or cereal grains and blending it with petrol to reduce crude oil imports. This entails diverting agriculturally productive land for the production of fuel. An alternative is to use inedible
There is a gradual increase in the concentration of greenhouse gases (GHGs)like CH4 and N2O in ambient air due to intensive agriculture, rapid industrialization and the expanding transport sector. About 80% of N2O is produced biologically and the major sources are agricultural fields, wetlands, sediments, animal
wastes and landfills. Emission of N2O from the soil is due to nitrification and e-nitrification processes.
The accrued palynological data obtained from the subsurface sediments of South Kerala Sedimentary Basin have been found to be useful for identifying various ecological complexes and their environmental preferences. The occurrence and relative abundance
of Cullenia exarillata pollen along with other wet evergreen
of greenhouse gases, is of major concern in terms of the global warming phenomenon. To mitigate the effect of atmospheric CO2, carbon capture and storage (CCS) has been found to be an important tool. The present study aims at explaining the role of soils as one of the most important natural resources in enhancing
Use of pesticides in India has substantially increased in recent years. It is increasingly becoming an inevitable input in intensive agriculture systems, which have mainly been fuelled by changes in cropping pattern and practice. Survey results confirmed that there has been a widespread lack of awareness on pesticides and their appropriate handling among the applicators in India. Implementation of alternate pest management strategies to reduce pesticide consumption was found to be ineffective.
Rice (Oryza sativa L.) is the staple food for about half of the world's population. Naturally, in view of the limited land resources to support the ever-rising human population, multipronged efforts are called for enhancing rice productivity aimed at aiding the world food security. As a result, enhancement
in rice production over the last few decades has come from new rice plant architecture with greater yield sink potential and better production management.
Atomic minerals (uraninite, pitchblende, coffinite, columbite-tantalite, zircon, monazite, xenotime, etc.), containing naturally occurring radio-elements of U and Th, and their geochemically coherent elements like Nb
On 30 May 2006, a bulk carrier, MV Ocean Seraya ran aground along the Karwar coast spilling 650 tonnes of oil. Due to the rough SW monsoon, the spill spread to some beaches in south Goa. The aim of this communication is to study the immediate impact of oil spill on benthic ecology.
spill on benthic ecology.
