Original Article
Sahana K R; Prem Kumar; Istalingamurthy A
Abstract
One of the most promising and accessible technologies for household water treatment is biosand filtration. The biosand filter is an intermittently operated slow sand filter at little scales. In this investigation, a series of laboratory scale was conducted by introducing a 10 cm thick layer of iron oxide ...
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One of the most promising and accessible technologies for household water treatment is biosand filtration. The biosand filter is an intermittently operated slow sand filter at little scales. In this investigation, a series of laboratory scale was conducted by introducing a 10 cm thick layer of iron oxide coated gravel with three layers of underdrain were utilized to remove conductivity, turbidity, hardness, manganese, E. coli, total coliform, faecal coliform from the kabini river water and ground water. The experiments were performed to analyse the performance of the modified biosand filter with household biosand filter as far as their decrease in evacuating under various working conditions. For BSF, the removal efficiencies were found to be 83.3-81.8% for turbidity, 55.6-50.2% for hardness, 40.4-55.67% for manganese, 95-98% for Escherichia coli CFU/mL,80-75% for faecal coliforms. The removal efficiencies of MBSF were found to be 60.6-70.2% for turbidity, 40.2-50.2% for hardness, 40.5-30.3% for manganese, 98.3-99.2% for Escherichia coli CFU/mL,85.3-80.1% for faecal coliforms. The initial concentration of kabini river water for turbidity 19±1.2 NTU; hardness 430±30; manganese 0.22±0.2; Escherichia coli 3850±736 CFU/mL; faecal coliforms 380±45 MPN/100 mL; pH 7.64±0.4 and ground water for turbidity 12±4.3 NTU; hardness 360±30; manganese 0.18±0.2; Escherichia coli 3850±736 CFU/mL; faecal coliforms 240±45 MPN/100 mL; pH 7.36±0.3.
Short Communication
Javid Imanpour Namin; Mohammad Forouhar Vajargah
Abstract
Water Pollution is a great concern all over the world specially in closed or semi-closed ecosystems like the Caspian Sea. Among the huge array of anthropogenic pollutants heavy metals have been responsible for several disastrous event damaging for aquatic biota and the man. Heavy metals enter the Caspian ...
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Water Pollution is a great concern all over the world specially in closed or semi-closed ecosystems like the Caspian Sea. Among the huge array of anthropogenic pollutants heavy metals have been responsible for several disastrous event damaging for aquatic biota and the man. Heavy metals enter the Caspian Sea through land-based oil exploration with over 100 years of history and offshore oil exploration which started 1950. Major rivers of the Caspian Sea watershed also have their share in ever increasing pollution in this unique water body. Fish are the main suspects of the pollution and sadly some of the unique specie of the Caspian Sea have already been vanishes extinct regionally or even globally and some are on the brink of extinction. Several studies conducted by authors and other researchers in the riparian countries of the Caspian Sea shows an increasing trend in heavy metal load via bioaccumulation and biomagnification in various tissues of sturgeons arguably the most valuable fish on the planet and also other bony fishes of great importance for local people and fishermen which rises health concern for fish itself and human. Strict measure should be taken and implemented to control and reduce heavy metal loads into water bodies in general and the Caspian Sea in particular. Strict measures should be taken and implemented under the observation of international organization to control od reduce heavy metal pollution in the Caspian Sea.
Original Article
Masoud Radmanesh
Abstract
Through rapid urbanizing and quick economically globalizing, the expressway, which is one of the significant highway networks parts, is formed at an incredible rate that obtained growingly intense ecologic environment concerns though contribution significantly for humans. Thus, promoting economically ...
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Through rapid urbanizing and quick economically globalizing, the expressway, which is one of the significant highway networks parts, is formed at an incredible rate that obtained growingly intense ecologic environment concerns though contribution significantly for humans. Thus, promoting economically improvement and at the same time controlling the negative expressway effect is essential. It must be an endurable expressway landscape. In this study, the features and the encountered differences of an endurable expressway landscape are investigated. The eco-control system in the endurable expressway landscape has been formed containing the theory and technology control system, adopting ecology, designing, cybernetics, landscape, and related expressway thesis for all guide approaches to the controlling procedure. This can be a combination of engineering technology, processes, and warranty of an endurable expressway landscape. The controlling technology contains 3 layers such as master controlling from 2 sides of designing and key nodes, subsection controlling specifically for the expressway feature of inner and outer factors, and management controlling cross the all living procedure cycle of the expressway. The endurable expressway landscape's eco-control system could be executed on 3 scales such as macro designing controlling, meso-design controlling and micro-engineering and technical controlling.
Original Article
Islam Abdolhakim
Abstract
Demands of Individuals and the government for corporation environmental conservation are so stern. Corporation encounters a danger of environmental conservation. Environmental restraints contain important elements that should be regarded in corporation strategic control planning. This study explains ...
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Demands of Individuals and the government for corporation environmental conservation are so stern. Corporation encounters a danger of environmental conservation. Environmental restraints contain important elements that should be regarded in corporation strategic control planning. This study explains the connection between environmental rule and corporation competitiveness and presents the elements that impact corporation environmental technique selection. It investigates the impact on the corporation. The competitiveness that corporation assumes various environmental control techniques and suggests various corporation strategic selection countermeasures by environmental restraints.
Original Article
Abdul Qahar Massror
Abstract
The main river in Beijing is the Yongding River. Nevertheless, According to the environmental contamination induced by economic growth, the environment of water, and the shore of the Yongding River are in danger of destruction. The Yongding River ecological repair is crucial. Phytoremediation and microbial ...
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The main river in Beijing is the Yongding River. Nevertheless, According to the environmental contamination induced by economic growth, the environment of water, and the shore of the Yongding River are in danger of destruction. The Yongding River ecological repair is crucial. Phytoremediation and microbial remediation have constructed specific accomplishments in the contamination management aspect of river, while both have some advantages and some disadvantages. Using in the best way of the related advantages relies on the collocation and composition of microbes and plants. According to the search domain and past literature, we have presented the procedure of plant microbe-associated bioremediation for restoring the environment of the water and removing heavy metal contamination in the soil of the Yongding River. This study presents novel concepts and procedures for repairing the Yongding River ecologic environment.
Original Article
Sanjoli Mobar; Pradeep Bhatnagar
Abstract
Electrical trash is one of the quickly increasing problems on the earth. Electrical trash includes considerable elements, some including toxic substances, which could have a damaging influence on human health and even on the environment. Quick economic development in Asia and the growing transboundary ...
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Electrical trash is one of the quickly increasing problems on the earth. Electrical trash includes considerable elements, some including toxic substances, which could have a damaging influence on human health and even on the environment. Quick economic development in Asia and the growing transboundary action of secondary sources would rise, which demand both 3R endeavors i.e., Decrease, Reutilize and Recycle in every nation. In India, Electrical trash control considers more significant according to the electrical trash generation due to the dumping of Electrical trash from developed countries. This study emphasizes India’s recent electrical trash scenario, i.e. importance of the issue, environmental and health dangers, recent removal and recycling process, available legal frame, association operating on the problem, and suggestions for steps with regulatory bodies in India.
