scholarly journals Analysis and Control of the Physicochemical Quality of Groundwater in the Chari Baguirmi Region in Chad

Water ◽  
2020 ◽  
Vol 12 (10) ◽  
pp. 2826
Author(s):  
Allaramadji Beyaitan Bantin ◽  
Hongping Wang ◽  
Xia Jun

Water resources are threatened nowadays by pollution that comes from domestic, industrial and agricultural discharges without prior treatment. This pollution causes the degradation of water quality. Surface pollutants can seep through the soil into water tables. The objective of our work is to assess and control the physicochemical quality of the Chari Baguirmi groundwater, to protect human health. The quality of 83 boreholes was assessed, while performing analysis for 12 physicochemical parameters at the National Water Laboratory and at the Center for Quality Control of Foodstuffs in Chad. These parameters are pH, EC, Ca2+, Mg2+, Na+, K+, Cl−, SO42−, NH4+ and NO3−, Fe2+ and HCO3−. The results obtained were also compared with WHO standards. The geochemical statistical approach has made it possible to characterize hydro geochemical properties and to understand the major processes of mineralization of groundwater resources in the Chari Baguirmi region in Chad. Some of its waters are acidic and weakly mineralized, rich in Fe2+ and NH4+. The origin of the mineralization is due to the alteration of the host rocks and to the hydrolysis of silicate and ferromagnesian minerals, as well as anthropogenic pollution. The ammonium concentrations in N’Djamena boreholes are higher than WHO standards, indicating the presence of pollution which may come from organic waste. These results constitute a preliminary step in understanding hydro geochemical functioning and a basis for monitoring the physicochemical quality of water in the study area.

Author(s):  
Allaramadji Beyaitan Bantin ◽  
Xia Jun ◽  
Hongping Wang

Water resources are threatened nowadays by pollution that comes from domestic, industrial and agricultural discharges without prior treatment. This pollution causes the degradation of water quality. Surface pollutants can seep through the soil into water tables. The objective of our work is to assess and control the physicochemical quality of the Chari Baguirmi groundwater, to protect human health. The quality of 83 boreholes was assessed, while performing analysis for 12 physicochemical parameters at the National Water Laboratory and at the Center for Quality Control of Foodstuffs in Chad. These parameters are: pH, EC, Ca2+, Mg2+, Na+, K+, Cl-, SO42-, NH4+ and NO3- , Fe2+ and HCO3-. Also, the results obtained were compared with WHO standards. The geochemical statistical approach has made it possible to characterize the hydro geochemical properties and to understand the major processes of the mineralization of groundwater resources in Chari Baguirmi region in Chad. Some of its waters are acidic and weakly mineralized, rich in Fe2+ and NH4+. The origin of the mineralization is due to the alteration of the host rocks and to the hydrolysis of silicate and ferromagnesian minerals as well as anthropogenic pollution. The ammonium concentrations in N’Djamena boreholes are higher than WHO standards, indicating the presence of pollution which may come from organic waste. These results constitute a preliminary step in understanding hydro geochemical functioning and a basis for monitoring the physicochemical quality of the water in the study area.


2018 ◽  
Vol 6 (1) ◽  
Author(s):  
Badusha M. ◽  
Santhosh S

The hydro geochemical features of Neyyar River for a period of one year from May 2015 to April 2016 were analyzed. Six sampling sites were fixed considering physiography and present landuse pattern of the river basin. The residents in the drainage basin are primarily responsible for framing a better landuse and thereby maintain a good water and sediment regime. Geospatial pattern of the present landuse of the study area indicated that the sustainability of this river ecosystem is in danger due to unscientific landuse practices, which is reflected in the river quality as well. The parameters such as hydrogen ion concentration, electrical conductivity, chloride, Biological Oxygen Demand, total hardness and sulphate of river water and Organic Carbon of river bed sediments were analyzed in this study. The overall analysis shows that the highland areas are characterized by better quality of water together with low organic carbon, which is mainly due to better landuse and minimal reclamation. The midland and lowland areas are characterized by poor quality of water with high organic carbon, which is due to high anthropogenic activities and maximum pollutants associated with the region together with the alteration in landuse from a traditional eco-friendly pattern to a severely polluted current pattern.


2019 ◽  
Vol 152 ◽  
pp. 65-72 ◽  
Author(s):  
Bo Wen ◽  
Zechao Cheng ◽  
Yanmei Hu ◽  
Yaowapa Boon-Ek ◽  
Chalermchai Wongs-Aree ◽  
...  

2019 ◽  
Vol 7 (2) ◽  
pp. 68
Author(s):  
Wahyuni Wahyuni ◽  
Supriyono Eko Wardoyo ◽  
Ridha Arizal

The Quality of Well Water around Final Garbage Dump (FGD)  Rawa Kucing, Tangerang, IndonesiaFGD Rawa Kucing is located at Sultan Iskandar Muda Street, Kedaung Wetan, Neglasari, Tangerang, Banten, Indonesia. It serves 1000 tons of garbage per day from 13 districts in Tangerang. The volume of garbage in Kota Tangerang increases from 1,212,264 m3 in 2008 to 4,590,724 m3in 2012.Well water is the main source of water for people around the FGD RawaKucing. They use well water for bath, wash,  and toilet (BWT) and other needs. Garbage decomposition which makes pollution around FGD Rawa Kucing can accur in air, water, and soil. Waste accurs in water and soil caused by leachate. Leachate can easily  spread through rainwater runoff and it absorbs to the ground and polluting it including well water around it. Contaminated well water can decrease the quality of water physically, chemically, and microbiologically.Groundwater samples taken from residents' well water around FGD Rawa Kucing  and they were represented by three groups which have distance 100 m - 3 km from FGD. Each group consisted of three samples which were taken from well water having depths between 8-18 m. The examination of the quality of well water should be made in accordance with the Regulation of the Minister of Health of the Republic of Indonesia No.416/MENKE /PER/IX/1990 on the Conditions and Control of the Quality of Clean Water and Quality Regulation of the Minister of Health of the Republic of Indonesia No. 492/MENKES/PER/IV/ on Requirements and Quality Control of Drinking Water.The quality of well water around FGD Rawa Kucing showed that there were the decreased quality water after testing with several parameter tests. There were six examination parameters which concentrate on exceeding the required quality standards that of TDS (1600-1764 mg/L), Nitrates (10.5-37.8 mg/L), Ammonia (3.50-66.21 mg/L), Iron (1.054-7.063 mg/L), Manganese (1.085-10.130 mg/L), and Total Coliform (80-130 colonies/100 mL).Keywords : Well water, leachate, TPAS, pollution, water qualityABSTRAKTPAS Rawa Kucing berada di Jalan Sultan Iskandar Muda Kelurahan Kedaung Wetan, Kecamatan Neglasari, Kota Tangerang, Banten dan mengangkut 1000 ton sampah/hari dari 13 kecamatan.Volume sampah di Kota Tangerang terus meningkat dari tahun 2008 sebesar 1.212.264 m3 sampai pada tahun 2012 telah mencapai 4.590.724 m3. Air sumur merupakan sumber air utama bagi masyarakat sekitar TPAS, karena hampir semua kebutuhan air dipenuhi dari air sumur yaitu untuk Mandi Cuci Kakus (MCK) dan kebutuhan lainnya. Pencemaran akibat dekomposisi sampah dapat terjadi di udara, dapat pula terjadi pada air dan tanah yang disebabkan oleh adanya rembesan air lindi. Lindi tersebut mudah disebarkan melalui limpasan air hujan dan meresap mencemari air tanah termasukair sumur yang ada di sekitarnya. Air sumur yang terkontaminasi lindi berakibat terjadinya penurunan kualitas air secara fisik, kimia, dan mikrobiologi. Air tanah sampelyang diambil berasal dari sumur penduduk yang berada di sekitar TPAS Rawa Kucing diwakili oleh 3 pengelompokkan dengan jarak 100 m – 3 km dari TPAS. Setiap kelompok terdiri dari 3 sumur pompa dengan kedalaman sumur antara 8 – 18 m. Pemeriksaan kualitas air sumur dilakukan  mengacu pada Peraturan Menteri Kesehatan Republik Indonesia Nomor 416/MENKES/PER/IX/1990 tentang Syarat-syarat dan Pengawasan Kualitas Air Bersih dan Peraturan MenteriKesehatan Republik Indonesia Nomor 492/MENKES/PER/IV/2010 tentang Syarat-syaratdan Pengawasan Kualitas Air minum.  Kualitas air sumur masyarakat di sekitar TPAS Rawa Kucing mengalami penurunan setelah dilakukan pengujian terhadap beberapa parameter. Ada 6 parameter pemeriksaan yang mempunyai konsentrasi  melebihi baku mutu yang dipersyaratkan yaitu TDS (1600-1764 mg/L), Nitrat (10,5-37,8 mg/L), Amonia (3,50-66,21 mg/L), Besi (1,054-7,063 mg/L), Mangan (1,085-10,130 mg/L), dan Total Coliform (80-130 koloni/100 mL).Kata kunci : Air sumur, air lindi, TPAS, pencemaran, kualitas air


2021 ◽  
Vol 12 (1) ◽  
Author(s):  
V. Serdiuk ◽  
◽  
V. Maksin ◽  

Agriculture, especially livestock, is rated as one of the most polluting industries in the world. In the other hand there is a modern approach to the technology implementation, and is this true that with its usage the impact on the environment is so critical and inevitably leads to environmental catastrophe. It is important to investigate and scientifically substantiate the impact of modern livestock complexes on the environment, especially on groundwater resources objectively,. And only after a number of studies conducted on pig farms with a capacity of 30 and 50 thousand heads per year it would be possible to determine next: is livestock an object of ultra-intensive pollution, or it is an object that does not have a significant negative impact on the environment and is also an economic and food lever of the country. The research was conducted on the example of the company JV LLC "NYVA PEREIASLAVSCHYNY" that is located in two districts of Kyiv region – Brovarskyi and Boryspilskyi. The sanitary protection zone size is 1500 meters to the nearest residential development (MINISTRY OF HEALTH OF UKRAINE, 1996). Projects to reduce the sanitary protection zone have not been developed as there is no need for it. Research of water quality was performed according to State Sanitary Regulations and Rules “Hygienic Requirements to Quality of Water Intended for Human Consumption” “2.2.4-171-10” (State Water Agency of Ukraine, 2010). It was conducted on samples that were taken from 4 artesian wells that are located on the territory of the pig breeding farm № 11. The aim of the research is to identify the impact of the pig breeding farm’s № 11 activity on the underground aquifer and surface water body. To reach this target water samples were collected according to the requirements established in the conclusion on environmental impact assessment from wells in the villages and river. Studies that were conducted during 2020 showed that the quality of water in wells meets the requirements for drinking water. Water samples from wells and ponds showed deviations from the norm up to 10 times. Previous studies did not set a negative impact of the pig breeding farm № 11 on groundwater quality.


2021 ◽  
Vol 23 ◽  
pp. 795-810
Author(s):  
Paweł Tomczyk

The aim of the article was the analysis of the physicochemical quality of water within the hydropower plant on the Ślęza River in Wrocław (south-west Poland) in the context of the European Union's classification of water quality, as well as an assessment of the potential impact of hydropower plants on this quality. The study uses the results of monthly tests from three measurement points within the hydropower plant on the Ślęza River in the city of Wrocław (points upstream and downstream the hydropower plant and the reference point), from the period June 2018 to May 2020. The analyses covered 10 physicochemical parameters, i.e.: pH, electrical conductivity (EC), water temperature, turbidity, NH4-N, NO3-N, NO2-N, total phosphorus, dissolved oxygen and BOD5. The conducted analysis showed that the hydropower plant has no clear influence on the physicochemical quality of the water in the Ślęza River, other interactions present in the catchment area are more important. From the effects visible in the results, a decrease in the amplitudes of water temperature downstream the hydropower plant compared to the other points was noted, as well as a lower median of its value (statistically significant changes). An additional noticeable effect was the increase in water oxygenation below the damming, but it was not statistically significant. It has been shown that the physicochemical condition of water at the tested points does not meet the assumed standards for 8 out of 9 parameters (except for water temperature). The largest exceedances of the limit values concerned NO2-N (up to 923% of the norm), and the most consistent, almost constantly occurring – EC (23 out of 24 months). The reason for the high NO2-N content was most probably surface runoff from the fields and the re-suspension of sediments rich in nutrients, while in the case of EC, its high values result from the specificity of the catchment area.


2020 ◽  
Vol 13 (1) ◽  
Author(s):  
Timothy Omara ◽  
Papias Nteziyaremye ◽  
Solomon Akaganyira ◽  
Dickens Waswa Opio ◽  
Lucy Nyambura Karanja ◽  
...  

Author(s):  
Ngong Ankiambom Innocent ◽  
Ajeagah Gideon Aghaindum ◽  
Kapso Tchouankep Mireille ◽  
Nguepidjio Gilbert ◽  
Sotchang Mbounga Ines Olivia ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document