The Book 'Waste Water Irrigation' is an out-come of researches of about 5 years. Waste water is a great problem in developing countries like India. The waste water in India is generated through a variety of sources and its proper disposal is not an easy task. On the other hand lots of groundwater is wasted for irrigation, particularly for vegetables, which are mostly grown in the sub-urban area. Due to enormous pumping of water by the urban population in addition to the run off loss through vegetable irrigation, the water table occasionally falls abruptly in urban area, particularly during summers. In addition solanaceous vegetables are the most prominent food stuff, which is used round the year. Therefore, series of experiments were conducted through irrigating solanaceous vegetables by sewage. WQI of the sewage water and its suitability was also studied. The yield and nutrient analysis of the harvest was explored and compared to that of the crop irrigated by normal water. Satisfactory results were obtained. The book is supposed to be useful to all, involved in the researches of environment, may be from the discipline of Botany, Zoology, Geography, Biochemistry, Engineering etc.
The degree of treatment or treatment efficiency of wastewater treatment plant depends primarily on the condition and best usage of the receiving stream. Work is carried out here for a city which is one of the highly industrialized cities and has number of small and medium scale textile units scattered all over the city. This city has waste water treatment plant which treats the waste water and dispose the effluent in the river. Last few years the river is facing lot of pollution problems. It is necessary to study the river assimilation capacity, possible modifications to the treatment efficiency of waste water treatment plant by studying river pollution parameters. Computer programming shall be used to study the effect of different parameters on pollution treatment efficiency. Present book deals with one of such approach, prime aim of which is having to find the sensitivity of river pollution parameters. This book also involves calculating Water Quality Index (wqi) of the river water.