scholarly journals Deterioration and Degradation of Aquatic Systems Due to Brick Kiln Industries – A Study in Cachar District, Assam.

2015 ◽  
Vol 10 (2) ◽  
pp. 467-472
Author(s):  
Sushmita Dey ◽  
Mithra Dey

Brick industries are unorganised, rural, small scale industries in Cachar district of Assam which play an important role in economic development of the entire region. It has been observed during the study that these brick industries are responsible for large scale environmental problems like land degradation, air pollution, water quality degradation and loss of biodiversity. The present study deals with the quality of water in the selected brick kilns in Cachar district and its degradation during Jan-Dec 2014. The existing water bodies are contaminated with different compounds and continuous siltation from the brick kilns. The research focuses on the variation of various physico-chemical parameters such as water temperature, pH, conductivity, Total alkalinity, Dissolved oxygen, Carbondioxide, Nitrate, Phosphate, Transparency in the selected water bodies. The studied ponds were found to be in degrading state with less productivity. Moreover, the result obtained showed the need and urgency to restore the physical, chemical and biological management tactics to conserve and preserve the ecological imbalance and disturbance in the hydro-geo-chemical and hydro-biological cycles that adversely affect the food chain and food web in the brick kiln affected aquatic bodies.

2020 ◽  
Vol 11 (6) ◽  
pp. 607-612
Author(s):  
T. Suguna ◽  

Over the last three decades, the commercial aquaculture has experienced spectacular growth. Many species have gone from small scale regional production to large scale global production. Concomitant with the rapid growth there also has been the increased occurrence of problems that accompany all agricultural endeavours. All the problems are stress influenced leading to diseases, impacting the profitability of the industries. In aquaculture also inspite of the unprecedented development of the intensified culture practices many economical problems have arise that are threatening the sustainability of culture systems. The root cause for all is stress. The word, “stress” is very common butreflects vast effective results. It is an invisible factor, influencing the survivality, growth, reproduction, production in culture fish especially. It is much easier for diseases to proliferate in the culture environment than in wild. Defining what levels of stressors are normal and acceptable is not easy. A level of stressor that is problematic under one set of environmental conditions might not be the same under another. The susceptibility of disease occurrence differs within species and age groups. Different stress factor such as inadequate physico chemical and microbial quality of culture water, poor nutritional stems and high stocking density can cause infection by opportunistic pathogens. In aquaculture, the stress plays major role on production, productivity, sustainability of the culture, economic loss and degradation of economic standards. A summation of causes for the acute and chronic stressors will enlighten the aqua farmers, scientists and fishery officials in designing environmentally friendly controlling measures, in obtaining higher yields.


In today’s world where climate activists focus more on large water bodies like seas and oceans, many smaller water bodies which lie neglected are also being contaminated. These smaller bodies also affect the groundwater, which goes unnoticed. The system checks parameters such as turbidity, temperature and pH levels. In addition to these monitoring, the depth of the water is measured to check whether any unnoticed large dumping/deposition had occurred. It is integrated on a USV so that human intervention is minimized. This system aims to provide continuous quality surveillance of water in places where large scale monitoring is not feasible, with the help of LoRa Communication which ensures low energy consumption and easier to implement compared to IoT technology. It can be implemented in rural as well as urban water bodies to check whether the quality of water has deviated from regular levels due to any external factors


Author(s):  
D.D. Tewari ◽  
Zaheen Hasan

Present investigation deals about the different water bodies occur nearby industrial area of Balrampur city. Industrial area of Balrampur city has one of the largest sugar factory of India i.e. Balrampur Chinimill with one distillery unit. Beside these, This area has some small scale industries also but the water bodies are affected mainly by sugar factory. The sampling has been done from different sites of containing mainly those area were effluents of the factory discharged regularly. The physico-chemical parameters of effluents containing water quality. The deterioration of industrial effluents with drainage water and untreated sewage also play very imp role to increase the pollution of surface water.


2014 ◽  
Vol 1 (2) ◽  
pp. 72-79
Author(s):  
Jipsa J.R ◽  
Mohammed Anwar K.K ◽  
Logaswamy S

The quality of water is identified in terms of its physical, chemical and biological parameters.Limnological features of two such temple ponds, the Cherukulangara temple pond and Aryanambi temple pond were undertaken in the present study. The biological parameters of the ponds were also made during the study. In the present investigation all the parameters showed higher values in Pond B compared to Pond A. All values are found to be within or less than the permissible limit. Both ponds showed an oligotrophic nature with the presence of poor nutrients and low vegetation. Both ponds are unpolluted fresh water bodies which have no chemical or sewage pollution. It is suggested that the higher authorities should take steps to maintain the quality of fresh water bodies including ponds from all kinds of pollution and balance the fresh water ecosystem.


Author(s):  
Sumon Ganguli ◽  
Shahidul Islam ◽  
Joydeb Garai

The coastal zone of Chittagong is receiving waste and industrial effluents owing to the industrialization and population growth. The physico-chemical parameters pH, temperature, dissolved oxygen, total dissolved solids, salinity of water bodies near the coastal belt of Chittagong provides valuable information on the quality of water. From the coastal belt of Chittagong, six areas (Banskhali, Anowara, Bandar, Sagorica, Vatiary and Kumira) were selected and studied during March-April 2016. The researcher revealed the water bodies was still conducive since most of the physico-chemical parameters investigated fell within the tolerable limits. Moreover, present socio-economic status was also investigated through the coastal belt of Chittagong.


Author(s):  
Aliva Bera ◽  
D.P. Satapathy

In this paper, the linear regression model using ANN and the linear regression model using MS Excel were developed to estimate the physico-chemical concentrations in groundwater using pH, EC, TDS, TH, HCO3 as input parameters and Ca, Mg and K as output parameters. A comparison was made which indicated that ANN model had the better ability to estimate the physic-chemical concentrations in groundwater. An analytical survey along with simulation based tests for finding the climatic change and its effect on agriculture and water bodies in Angul-Talcher area is done. The various seasonal parameters such as pH, BOD, COD, TDS,TSS along with heavy elements like Pb, Cd, Zn, Cu, Fe, Mn concentration in water resources has been analyzed. For past 30 years rainfall data has been analyzed and water quality index values has been studied to find normal and abnormal quality of water resources and matlab based simulation has been done for performance analysis. All results has been analyzed and it is found that the condition is stable. 


1991 ◽  
Vol 23 (1-3) ◽  
pp. 1-10 ◽  
Author(s):  
Takeshi Goda

The management and status of public water bodies in Japan is discussed. The environmental quality standards which have been set and the levels of compliance with these standards are shown. The water quality of Japanese rivers, lakes, reservoirs, wetlands and coastal waters is described, and eutrophication problems are mentioned. The effects of changes in population density and levels of recycling of industrial wastewaters on the quality of water bodies are discussed. Almost 75% of industrial wastewater is now recycled. Per capita availability of freshwater in Japan is comparatively low, and the construction of 530 dams, in addition to the 2393 dams already in operation, is planned. Irrigation effluents from paddy fields are a major factor which influences river water quality in Japan. The improvement of water quality using various methods is discussed.


2021 ◽  
Vol 6 (1) ◽  
pp. 17-30
Author(s):  
J Touir ◽  
S Kitanou ◽  
M Zait ◽  
S Belhamidi ◽  
M Belfaquir ◽  
...  

Nitrate groundwater contamination is of major interest all over the world. This problem arises in agricultural regions across Morocco. An excess amount of nitrate causes a serious problem in urban water networks and human health. Because of these health risks, considerable attention has been paid to find effective treatment processes to reduce nitrate concentrations to safe levels. The World Health Organization has set an acceptable level for nitrate in drinking water at 50 mg/L. The aim of this study is to reduce the nitrate concentration from groundwater using two membrane processes: Electrodialysis (ED) and Nanofiltration (NF). Efficiencies of these two technologies are compared in respect to nitrate ions removal, cost process and final quality of water. The results of technologies show that, for electrodialysis standards level can be achieved for a demineralization rate of 15% and the physico-chemical quality of the produced water is satisfactory. For nanofiltration we obtain a nitrate removal of 90% but the produced water is very de-mineralized and must be remineralized.


Author(s):  
Andrius Litvinaitis ◽  
Lina Bagdžiūnaitė-Litvinaitienė ◽  
Laurynas Šaučiūnas

On preparing of the first management plans of River Basin Districts have been found that diffuse agricultural pol-lution is one of the most important causing factor and the most significant impact on the quality of water bodies. Diffuse agricultural pollution can be from 45% to 80% of nitrate nitrogen pollution load of water bodies. Pollution is transported by water surface and subsurface runoff through sediments from agricultural territories. This article aims at evaluating of relation between the Quaternary sediments and Land use dissemination. The lithological factor (sandy, loamy, argillaceous) of the basin was calculated based on Quaternary map of Lithuania M 1:200000 and Lithuanian river map M 1:50000. The land-use factor of the basin was calculated based on Corine Land cover M 1:100000 using ArcGis software. In order to carry out more thorough analysis of the determination of relation between the Quaternary sediments and Land use dissemination in given territories, sections of 0–50 m, 50–200 m, 200–500 m, 500–800 m, 800–1000 m and >1000 m were established, calculating the distance in meters from the riverbank.


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