crop production with waste water

crop production with waste water
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crop production with waste water

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Publisher: Agrotech Publications
ISBN: 9788185680965
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Availability: In Stock
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About this eBook

PREFACE Water is life and purer the water, better the life is of all livng creatures. The demand of water for various purposes like domestic, commercial, industrial and for agricultural is increasing significantly all over the world. Growing urbanization and industrialization has further ag gravated the situation and generating huge quantities of wastewater of different physical, chemical and biological characteristics. Such variedly waste waters either through the process of recycling or as a means of irrigation in areas where no other source of good quality water is available, are disposed on land. Under all situations the land resources are more and more contaminated by polluted waters leading to complete deterioration in soil health. Waste water reuse for agriculture presents not only a low cost appropriate disposal medium but also an opportunity to manage wastes with minimum adverse environmental effects as the treatment requirements prior to land application are less rigid than those for disposal into water bodies. Application of sewage sludge and domestic wastewater on land has been practiced since time immemorial. The challange is to utilize the chemical, physical and biological properties of soil as an acceptors with minimum adverse effects on crops to be grown, soil characteristics and ground and surface water quality. Crop plants and trees grown on contaminated soils are likely to reflect the poor quality in the produce and may be unsuitable for human and animal consumption if they contain toxins beyond permissible limits. Number of soil-water-plant-food chain processes are working under contaminated systems. These are not only complex in nature but are multi-components with widely varying conditions. Hence the laws and predictive approaches meant for single component systems are not usually operative in contaminated system. This book is written with an objective to Cover most important issues in utilizing wastewater for crop-production. The book has in total thirteen
6
C rop P ro d u c tio n with W aste W ater
chapters including one case study. The book begins with wastewater availability and problem associated in waste water use. The chapter 2 through 5 deal with environment and pollution - classification of pollutants, air, soil and water pollution, environmental issues pollution through fertilizer and pesticides including weedicides, characteristics of domestic wastewater, industrial waste water and surface and ground water pollution. Water quality criteria evaluation is taken up in detail under chapter 6. Physico-chemical and biological parameters of significance for soil as well as for human health are covered in detail in chapter 7. A Chapter 8 is devoted on effeect of waste water irrigation on crops-includes growth response at germination and early stages, yield and critical limits for metals have been described. The chapter also includes plant composition with phytotoxicity limits of different metais for different crops. The chapter 9 deals the utilization of waste water for forestry and chapter 10 is devoted to land and crop