The book “River Pollution and Solution
” is the output of few year studies conducted under the guidance and able supervision of many eminent scientists from Banaras Hindu University, Varanasi; Allahabad University, Allahabad; DDU Gorakhpur University, Gorakhpur; Udai Pratap Autonomous P.G. College, Varanasi and many more. Authors do not claim for cent percent originality for each and every statement, figure, table and graph of the book, however, all the practical findings are original. The book is compilation of independent research works directly conducted in the field. Complete content of the book is divided into thirteen chapters
. Each and every chapter has been supported by adequate and relevant references and also by the authentic data of the field work.
Chapter I consists of details of needs for standards of water quality
. It consists of standards established by different recognized agencies in the world. In this chapter standards of water for different uses such as drinking, irrigation etc. has been explained in detail.Chapter II consists of the details of components of polluted water and their impact
on plants, animals and human. It also explains the source of different pollutants, their quality, quantity and source of emission. It also deals with the various phenotypic abnormalities produced by the living components by the process of consumption.Chapter III deals with river pollution at a glance
. In this chapter, the pollution status of different rivers across the globe has been discussed along with the scientists involved in the study. This chapter also consists of the latest references.
Chapter IV deals with Case study of Varuna: a tropical river
in India. River Varuna has been selected to be the ideal river in a tropical city on the basis of various ecological factors. In this chapter various sources of pollution in this river has been discussed. Meteorological variations have been analysed and all the values have been correlated.Chapter V is the study of variation in properties of water
of river Varuna. Detailed study of this river has been conducted for the analysis of selected physico-chemical parameters throughout the year. Four study sites have been selected for analysis of the water quality of this river. All the parameters have been shown through graphs showing comparative variation among the sites.
Chapter VI deals with aquatic macrophytic diversity
. In this chapter density and frequency of various macrophytes in the river have been studied. Their values have been shown clearly through graphs. Similarity and dissimilarity indices have been calculated for the sites on the basis of macrophytes.Chapter VII is the study of quality of water sediments
. In this chapter mechanical properties, physico-chemical properties, pH, total nitrogen, organic carbon and few other parameters of the water sediments have been studied and expressed through a number of tables and graphs.
Chapter VIII deals with traditional waste water treatment
. This deals with all the methodologies traditionally used for treatment of waste water. It also explains science of the treatments. The chapter explains the findings with the help of a number of figures and flowcharts.Chapter IX deals with advanced waste water treatment
. In this chapter, the advanced methods which are either in use somewhere in the world or proposed to be used are still it may be in the laboratory has been discussed. The methods are mostly physical or chemical.
Chapter X deals with Ex-situ treatment of river water
. This chapter explains the laboratoryexperiments conducted to control the water pollution of the river. Chemical and biological methods have been applied in laboratory. Different results obtained in this treatment have been compared. Efficiency of macrophytes for controlling the water pollution has been found to be better. The results have been explained with the help of a number of graphs. This chapter opens a vista for new researchers in this field.Chapter XI consists of general discussion
of all the previous chapters. All the findings of the experiment or the collected data or the meteorological data have been compared, correlated and discussed.
Chapter XII is the methodologies
used throughout the study i.e. whether it is method of sampling, method of analysis of physico-chemical properties of water, physico-chemical properties of water sediments, macrophytic analysis or statistical analysis.Chapter XIII consists of summary, conclusion and recommendations
. This chapter is the soul of the book. It consists of the final findings and recommendations which can be applied to control the water pollution of tropical rivers passing through cities like Varuna river in Varanasi, India.
Before the end, a detailed bibliography has been incorporated which consists of about 500 latest and relevant references of works done round the globe including that in India. This is very much useful for the scientists involved in parallel studies.Finally at the end, appendices have been appended which consists of results of statistical analysis, results of treatment of water samples of different sites in detail in tabular form.