Effect of Pre-ozonation on Haloacetic Acids Formation in Ganga River Water at Kanpur, India

2017 ◽  
Vol 99 (1) ◽  
pp. 37-44 ◽  
Author(s):  
Nagasrinivasa Rao Naladala ◽  
Rambabu Singh ◽  
Kumud Lata Devi Katiyar ◽  
Purnendu Bose ◽  
Venkatesh Dutta
2018 ◽  
Vol 4 (1) ◽  
pp. 06-08 ◽  
Author(s):  
Madhulekha Shukla ◽  
Sunita Arya

Purpose of the study:The purpose of this present study was determine the concentration of chloride ion in water sample which collected different site and season of river Ganga.Chloride ions in the environment can come from sodium chloride or from other chloride salts such as potassium chloride, calcium chloride and magnesium chloride. Methodology:Water sample was collected from different site(Bithor ghat, Siddnath ghat and Dhoni ghat) and different season(Pre monsoon, Monsoon and post monsoon) of river Ganga from Kanpur in 2016-2018 year. Mohr method (Argentometric method) was a very simple and highly selective method for the determination of chloride ion (Cl-) using silver nitrate as the titrant. Main Findings: In both the years 2016 till 2018, chloride concentration was within the limit at testing sites.  Applications of this study:To create awareness among the people to maintain the Ganga river water at its highest quality and purity levels. Originality: This project was done in the D G P G College C S J M University, Kanpur India.


2020 ◽  
Author(s):  
Abhayanand Singh Maurya

<p><strong>Tracing the sources of pollutants in Ganga river water using conventional and non-conventional isotope analysis in nitrates</strong></p><p> </p><p>Abhayanand S. Maurya<sup>1</sup>, Amzad H. Laskar<sup>2</sup>, Nityanand S. Maurya<sup>3</sup>, Mao-Chang Liang<sup>4</sup>,</p><p><sup> </sup></p><p><sup>1</sup>Department of Earth Sciences, Indian Institute of Technology Roorkee, Roorkee-247667, Uttarakhand, India</p><p><sup>2</sup>Geosciences Division, Physical Research Laboratory, Ahmedabad 380009, Gujarat, India</p><p><sup>3</sup>Department of Civil Engineering, National Institute of Technology Patna, India</p><p><sup>4</sup>Institute of Earth Sciences, Academia Sinica, Taiwan</p><p> </p><p>Ganga is the largest river in India providing fresh water to ~40 % of India’s population which is more than any other river in the world. It is also one of the most polluted rivers in the world. Pollution, mainly from human and industrial wastes in the Ganga poses significant threats to human health and environment. This is an attempt to identify and quantify the contribution of different sources in the river water pollution using stable isotopes in nitrate (NO<sub>3</sub><sup>-</sup>). We measured non-conventional triple oxygen isotopes (∆<sup>17</sup>O<sub>NO3</sub>=δ<sup>17</sup>O<sub>NO3</sub>-λδ<sup>18</sup>O<sub>NO3</sub>) along with the conventional isotopes (δ<sup>15</sup>N and δ<sup>18</sup>O) in NO<sub>3</sub><sup>-</sup> and concentrations of major ions and metals (both heavy and trace ones) in Ganga river water to understand the sources and contribution from different pollution sectors. We also measured stable water isotopes (δD and δ<sup>18</sup>O) to understand the secondary processes such as in stream evaporation and inflow over the course of the river.  Water samples were collected from multiple locations starting from the clean water in the upstream region to all the way to the estuaries before the onset of monsoon, to best capture anthropogenic signals. ∆<sup>17</sup>O in NO<sub>3</sub><sup>-</sup> is used to partition the atmospheric depositions from other sources such as human and industrial wastes and δ<sup>15</sup>N and δ<sup>18</sup>O values are used to partition the contribution of pollutants from different land sources such as municipal wastes and agricultural fertilizers. ∆<sup>17</sup>O in NO<sub>3</sub><sup>- </sup>is also used to understand reaction processes which affect the isotopic composition such as nitrification, denitrification, volatilization, assimilation and mineralization as those processes mostly follow mass dependent fractionation without affecting ∆<sup>17</sup>O but influence the conventional isotopic compositions. We will present the results along with some recommendations for reducing the pollution level of the Ganga water.</p><p> </p>


2020 ◽  
Vol 10 (9) ◽  
Author(s):  
Gagan Matta ◽  
Anjali Nayak ◽  
Avinash Kumar ◽  
Pawan Kumar

Abstract Ganga River water is very much stressed with the rapidly increasing population, climate change and water pollution that increase domestic, agricultural and industrial needs. This study assesses the surface water quality of the River Ganga in India, using NSFWQI, OIP and multivariate techniques. During the current study, water samples from Ganga River were collected for the assessment of 19 physico-chemical determinants from 20 sampling locations. Water quality indices (WQIs) is used to classify the overall impact of different variables of water. Multivariate techniques were utilized to assess the water conditions for productive management of fresh water quality. The WQI results showed that surface water quality varied at the selected sampling sites among medium and good categories. The PCA generates the 6 principle components which highly contributes (80.3%) in influencing the hydro-chemistry of river water. Agricultural waste runoff, untreated effluents and many other anthropogenic activities were identified as main contributor in decreasing the water quality of the River Ganga. To maintain and protect this fresh water resources against contamination, the usage of stringent policies and rules are expected to preserve fresh water resources for people in the future.


2004 ◽  
Vol 4 (4) ◽  
pp. 227-233 ◽  
Author(s):  
M. Fabbricino ◽  
G.V. Korshin

Experiments with Alento River water (a drinking water source in the province of Salerno, Italy) showed that considerable amounts of disinfection by-products, primarily chloroform and haloacetic acids, form in that water upon chlorination. The total yield of haloacetic acids was almost twice as high as that of chloroform. Chlorination also caused significant changes in the intensity of NOM fluorescence and the position of the emission band. To quantify the latter, the wavelength that corresponds to the position of the emission band at its half-intensity (λ0.5) was employed. Chlorination caused the λ0.5 values to decrease, while the THMs and HAAs concentrations were linearly correlated with the corresponding λ0.5 values. The strength of correlations between DBP concentrations and λ0.5 values indicates that the latter parameter can be employed in studies of DBP formation in drinking water.


2019 ◽  
Vol 42 (1) ◽  
pp. 24-35 ◽  
Author(s):  
Nagasrinivasa Rao Naladala ◽  
Rambabu Singh ◽  
A.S. Venkatesh ◽  
P. Bose ◽  
Prasad Babu K ◽  
...  

2012 ◽  
Vol 185 (5) ◽  
pp. 3711-3720 ◽  
Author(s):  
Bahman Ramavandi ◽  
Sina Dobaradaran ◽  
Ghorban Asgari ◽  
Hossein Masoumbeigi

1994 ◽  
Vol 30 (2) ◽  
pp. 105-112 ◽  
Author(s):  
Narendra P. Agnihotri ◽  
Vijay T. Gajbhiye ◽  
Mukesh Kumar ◽  
Satya P. Mohapatra

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