A Review on Environmental Impact Assessment of Modunaghat Water Treatment Plant, Chattogram

2021 ◽  
Author(s):  
Syed Rafid Tahmid ◽  
Ahsan Ali ◽  
Mohammad Nahid Hassan
2018 ◽  
Vol 13 (3) ◽  
pp. 692-704
Author(s):  
Pelin Soyertaş Yapıcıoğlu

Abstract The meat processing industry has many unfavorable impacts to the environment in Turkey. One of these impacts is wastewater treatment. Meat processing wastewater contains large amounts of proteins, fats, nutrients such as nitrogen, and pathogenic and non-pathogenic microorganisms and viruses. The high organic and hazardous content of wastewater causes environmental challenges for the flora and fauna in receiving water bodies unless it is treated adequately. Due to these reasons, the treatment process to be implemented should be the least damaging to the environment. In this study, three treatment scenarios that include a UASB (upflow anaerobic sludge bed) reactor (Scenario-1), an advanced oxidation process that includes UV/H2O2 treatment (Scenario-2) and a membrane bioreactor (Scenario-3) have been studied for a meat processor's wastewater treatment plant. For these three scenarios, an environmental impact assessment was undertaken using the Fine-Kinney method. The evaluation results revealed that Scenario-2 has the smallest environmental impact value with 475. Scenario-1 has the highest total environmental impact value as 765. Scenario-3's environmental impact value is 637. According to the evaluation results, the UV/H2O2 process is the most applicable technology for wastewater treatment in Turkey's meat industry.


1987 ◽  
Vol 19 (12) ◽  
pp. 337-339 ◽  
Author(s):  
Maria Amélia S. Pereira ◽  
Luís Machado

This paper intends to present the main problems studied in the environmental impact assessment of the discharge of the tertiary effluent from a stabilisation pond system to be built for the city of Faro (Algarve) into Ria Formosa, a shallow coastal water body of high ecological, economic and touristic value. The environmental assessment emphasized the analysis of the impacts that may affect the shellfish beds as well as the flora and fauna, which are mainly the decrease of salinity, the increase of nutrients content and the entry of pathogens. Despite the impossibility of quantitative assessment, the study concluded that the effects of the variation of salinity and nutrients content will not be very significant. However, the pathogens are likely to contaminate the shellfish bads. Recommendations are presented including construction and operation of a suitable treatment plant, tight sanitary control of the shellfish before human coneumption and monitoring of the future situation.


2019 ◽  
Vol 1 (2) ◽  
pp. 87-94
Author(s):  
Novika Rukka ◽  
Ton van der Linden ◽  
Mathilde de Jongh ◽  
Luytzen Woudstra

The aim of this research is to elaborate of the impacts on the use of the effluent of the water treatment plant Pinedo in the North of Albufera Natural Park in Valencia, Spain. Interviews and observations were conducted, which together created an Impact Assessment. To be able to see the influence of effluent on the water quality, an observation point in the north was compared to another observation point in the south. Besides that, a boat trip was made to observe the water quality on the lake. The result shows that eutrophication occurs as a cosequence of the wastewater from water treatment. Farmers have no choice and are happy to have a constant source. Fishermen have experienced a disastrous change in the seventies, but now see an improvement of the water quality. Environmentalists are most negative about the effluent inflow. The government understands the concerns and wants a higher quality of the effluent, but they do not have means to improve it. Water treatment plant Pinedo recognizes the corncerns either; however, the water quality already meets the requirements. Forecasting the future, everybody is slightly positive. The improvement of the quality of the effluent is a good thing and should carry on.


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