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Predicting the Capacity of Receiving Wastewater of Thuong River in Vietnam and Propose Policies for Water Resources Protection
Trinh Thi Thu Van,
Bui Cong Quang,
Nguyen Duc Viet,
Nguyen Tung Phong
Issue:
Volume 6, Issue 1, February 2018
Pages:
1-12
Received:
19 January 2018
Accepted:
31 January 2018
Published:
5 March 2018
Abstract: Thuong river - a tributary of the Red River in Vietnam, is currently facing the degradation in both water quality and quantity. One of the major causes of water pollution is wastewater discharge into the river from industrial plants, agricultural and residential areas where wastewater is untreated or treated but does not meet the Vietnamese standards. This report presents the results of predicting the capacity of receiving wastewater of Thuong river from the Cau Son hydrological station to Pha Lai hydrological station in 2020 and 2030 with 3 scenarios: (i) The amount of waste water increases according to plan, but not treated, (ii) 30% waste water is treated, (iii) 70% waste water is treated. The method is the application of the MIKE 11 model combined with the waste load calculation formula. The results showed that, in many river stretches, especially the stretches run through Bac Giang city and industrial areas, the river pollution is increasingly serious, and has no signs of stop. Therefore, it is necessary to propose the water policies to control the wastewater discharge into the Thuong River in particular and the Red River system in general in order to protect water resource.
Abstract: Thuong river - a tributary of the Red River in Vietnam, is currently facing the degradation in both water quality and quantity. One of the major causes of water pollution is wastewater discharge into the river from industrial plants, agricultural and residential areas where wastewater is untreated or treated but does not meet the Vietnamese standar...
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The General Trend of Temperatures in the Central and Southern Regions of Iraq and to Predict It's in the Future
Jawad Kadhim Obaid al Hesnawy,
Nadia Rhman Mohammed AlـKhaqani
Issue:
Volume 6, Issue 1, February 2018
Pages:
13-17
Received:
6 July 2017
Accepted:
11 February 2018
Published:
14 March 2018
Abstract: The study aims to detect the change in the temperature Central and Southern Regions of Iraq, it has been shown that the temperature of the study area climate for the period (1981- 2014) has increased by (1.41 m), also revealed climate prediction of the future for the time period of the stations the study area than a year (2015 - 2065), that there is a gradual rise in temperatures is thermally of the study area, the temperature recorded in 2015, the rate of temperature (25.61 m) while the rate in 2065 (28.93 m) and that the increase in the degree of rate heat during the fifty years to come will be (3.32 m).
Abstract: The study aims to detect the change in the temperature Central and Southern Regions of Iraq, it has been shown that the temperature of the study area climate for the period (1981- 2014) has increased by (1.41 m), also revealed climate prediction of the future for the time period of the stations the study area than a year (2015 - 2065), that there i...
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Processing Dewatered Faecal Sludge into Un Pelletized Fertilizer for Crop Production in Greater Accra-Ghana
Dennis Ofori-Amanfo,
George Nana Kwesi Rockson,
Alfred Arthur,
Issahaku Ahmed
Issue:
Volume 6, Issue 1, February 2018
Pages:
18-25
Received:
28 February 2018
Accepted:
14 March 2018
Published:
13 April 2018
Abstract: Organic wastes such as Fecal Sludge (FS) and Municipal Solid Waste (MSW) are readily available in large quantities in the Ghanaian environment especially in urban cities and towns where human populations are constantly swelling like Accra, Ghana. These wastes are observed to be rich in good amounts of organic matter and nutrients which when treated and managed well can be reused in agricultural production by improving soil fertility for plant growth. This study seeks to present first extensive assessment of the physicochemical and Microbial characteristics of mixing dried Fecal Sludge (DFS) and municipal organic Compost and the formulation mix effect on lettuce production in greater Accra region. Analysis of the characteristics of Dry Fecal Sludge and Compost informed in three (3) different formulations of Mix accordance with estimated variation on percentage nitrogen of 1.5%, 2.0% and 2.5%. The ratios were 1:3.3, 1:1.1 and 1:0.4 (w/w) of Dry Fecal Sludge and Compost respectively. Analyses of the physicochemical parameters confirmed that, formulation Mix of Dry Fecal Sludge and Compost had significant effect (p<0.05) on physicochemical parameters studied. The different treatments mix were tested on the growth of lettuce. Data on plant height and girth showed that there was a significant (p < 0.05) variation between the treatments. Formulated mix 1 showed high growth yield of lettuce as compared to other treatments in terms of number of leaf, wet and dry weigh of lettuce.
Abstract: Organic wastes such as Fecal Sludge (FS) and Municipal Solid Waste (MSW) are readily available in large quantities in the Ghanaian environment especially in urban cities and towns where human populations are constantly swelling like Accra, Ghana. These wastes are observed to be rich in good amounts of organic matter and nutrients which when treated...
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Management of Soil Contaminants in Guinea - Bissau
Namir Domingos Raimundo Lopes,
Yuanyuan Cheng,
Wei-lin Shi
Issue:
Volume 6, Issue 1, February 2018
Pages:
26-39
Received:
16 April 2018
Accepted:
2 May 2018
Published:
22 May 2018
Abstract: Population growth has motivated the gradual increase of agricultural, commercial and mini-industrial activities in Guinea-Bissau. Such activities have been contributing for the generation of certain type’s chemical products such as pesticides, fertilizers, plastic bags, hydrocarbons and others, and they are gradually contributing for the increase of harmful chemical wastes and consequently contaminating the environment and the human health since 1960s. Up to now, the country still lacks proper management of soil contaminants, fact that motivate the choice of this research topic in order to help addressing the environmental problems in Guinea-Bissau. This research aims to review the current status of soil contamination in Guinea Bissau, including the technical and regulatory management framework through a series of literature reviews, interviews, site visits and e-mail conversation, to identify the main sources and causes of soil contamination, to determine the effects on the environment and human health, the control and prevention measures including the national and international regulations. Nevertheless, the research found that, all chemicals used in this country are imported and their applications on bare soil are ones of the main causes for soil contamination due to the anthropogenic interest in Guinea-Bissau. Such in the short term can turn into a risk because of its multiplications in soil and inappropriate means of prevention and control of chemical wastes. And it will be visible in a long term due to an eventual transformation of agricultural land into severe infertility, loss of healthy environment and human fragility.
Abstract: Population growth has motivated the gradual increase of agricultural, commercial and mini-industrial activities in Guinea-Bissau. Such activities have been contributing for the generation of certain type’s chemical products such as pesticides, fertilizers, plastic bags, hydrocarbons and others, and they are gradually contributing for the increase o...
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