Risk Assessment of Chemical Pollution of Industrial Effluents From A Soap Production Plant Located In Bafoussam (Western Region of Cameroon)

2021 ◽  
Author(s):  
Zoyem Gouafo Mathurin ◽  
Talla Pierre Kisito
Keyword(s):  
Drinking Water ◽  
Oxygen Demand ◽  
Industrial Effluents ◽  
Chemical Pollution ◽  
Production Plant ◽  
Limit Values ◽  
The People ◽  
Soap Production ◽  
State Of Affairs

Abstract The MEWOU river, which runs through the town of Bafoussam, is one of the main sources of drinking water and irrigation for the people who live there. It is subject to intense agricultural and industrial activity all along its banks. Soap and refined oil factories generate pollution in the form of liquid effluent which is released without any form of treatment. A total of seven samples were analyzed during the months of March, April and May of the year 2021. The results we obtained were analyzed according to the regulatory requirements recommended by the Guidelines for the quality of drinking water and the Algerian standard relating to the limit values ​​of physicochemical parameters. The results we obtained showed signs of significant pollution in particular: chemical oxygen demand (COD: 125.32-959 mg L-1), 5 days-biochemical oxygen demand (BOD5: 23-99 mg L-1), turbidity (2-520 NTU), TDS (130-13430 mg L-1), Nitrite (4.96-21327.44 mg L-1) and many other parameters greatly exceed those required by the international standard, we have also noted a strong pollution to heavy metals: chromium (35.76- 1381.08 mg L-1), lead (0.21 - 2.49 mg L-1), iron (0.28- 17.82 mg L-1), and cadmium (0 , 03-0.19 mg L-1) which are above the values ​​prescribed by the WHO. These heavily polluted effluents released into the natural environment are harmful to the environment, biodiversity and human health. This state of affairs requires urgent intervention to preserve the ecological balance. Otherwise, it can constitute a risk for public health in the short term by deteriorating the quality of the underground reservoir known as the main source of water supply for the local populations.

scholarly journals Comparison of aerobic processes for olive mill wastewater treatment

2020 ◽  
Vol 81 (9) ◽  
pp. 1914-1926 ◽  
Author(s):  
Y. Jaouad ◽  
M. Villain-Gambier ◽  
L. Mandi ◽  
B. Marrot ◽  
N. Ouazzani
Keyword(s):  
Stable State ◽  
Oxygen Demand ◽  
Industrial Effluents ◽  
Olive Mill Wastewater ◽  
Organic Loading Rate ◽  
Efficient Technology ◽  
Treated Water ◽  
Conventional Activated Sludge ◽  
Olive Mill

Abstract Membrane bioreactor (MBR) has been proven to be an efficient technology capable of treating various industrial effluents. However, the evaluation of its performances in the case of olive mill wastewater (OMW) over a conventional activated sludge (CAS) have not been determined yet. The present study aims to compare OMW treatment in two laboratory scale pilots: an external ceramic MBR and CAS starting with an acclimation step in both reactors by raising OMW concentration progressively. After the acclimation step, the reactors received OMW at 2 gCOD/L with respect to an organic loading rate of 0.2 and 0.3 kgCOD/kgMLVSS/d for MBR and CAS, respectively. Biomass acclimation occurred successfully in both systems; however, the MBR tolerated more OMW toxicity than CAS as the MBR always maintained an effluent with a better quality. At a stable state, a higher reduction of 95% chemical oxygen demand (COD) was obtained with MBR compared to CAS (86%), but both succeeded in polyphenols removal (80%). Moreover, a higher MLSS elimination from the MBR treated water (97%) was measured against 88% for CAS. Therefore, CAS was suitable for OMW treatment and MBR could be proposed as an alternative to CAS when a better quality of treated water is required.

scholarly journals Characterization by fluorescence of dissolved organic matter in rural drinking water storage tanks in Morocco

2018 ◽  
Vol 16 (2) ◽  
pp. 321-328
Author(s):  
Faissal Aziz ◽  
Naaila Ouazzani ◽  
Laila Mandi ◽  
Aziz Assaad ◽  
Steve Pontvianne ◽  
...  
Keyword(s):  
Drinking Water ◽  
Fluorescence Spectroscopy ◽  
Rural Areas ◽  
Water Storage ◽  
Oxygen Demand ◽  
Synchronous Fluorescence ◽  
Storage Tanks ◽  
Reservoir Water ◽  
Synchronous Fluorescence Spectra

Abstract Water storage tanks, fed directly from the river through opened channels, are particular systems used for water supply in rural areas in Morocco. The stored water is used as drinking water by the surrounding population without any treatment. UV-visible spectroscopy and fluorescence spectroscopy (excitation-emission matrices and synchronous fluorescence) have been tested as rapid methods to assess the quality of the water stored in the reservoirs as well as along the river feeding them. Synchronous fluorescence spectra (SFS50), collected with a difference of 50 nm between excitation and emission wavelengths, revealed a high tryptophan-like fluorescence, indicative of a pollution induced by untreated domestic and/or farm wastewater. The best correlations were obtained between the total SFS50 fluorescence and dissolved organic carbon (DOC) and biological oxygen demand, showing that the contribution of humic-like fluorescent substances cannot be neglected to rapidly assess reservoir water quality in terms of DOC by fluorescence spectroscopy.

scholarly journals The Study of the Drinking Water Quality from the Local Sources, Busu Village, Dolj County and of the Physical and Chemical Determinations

2018 ◽  
Vol 1 (1) ◽  
pp. 212-215
Author(s):  
Olimpia Pandia ◽  
Ion Sărăcin ◽  
Eliza Ștefania Tănasie
Keyword(s):  
Drinking Water ◽  
Chemistry Laboratory ◽  
Total Hardness ◽  
Limit Values ◽  
Chemical Indicators ◽  
Local Sources ◽  
Physical And Chemical ◽  
The Village

Abstract In the present paper, the authors refer to a study carried out in the village of Greceşti, Busu village, Dolj County, on the quality of drinking water from local sources (wells, wells and wells) and the comparison of these results with the limit values allowed by the legislation in force, namely Law 458/2002 and Law 311/2004, as well as the Water Framework Directive and the Groundwater Directive 118/2006 / EC. Organoleptic indicators, physical and chemical indicators from 10 distinct locations as source of harvested water were determined, where organoleptic indicators were determined by determination of taste and odour; physical indicators, determining the pH, colour, turbidity and total hardness; chemical indicators: ammonium, chlorides, oxidisability, nitrites. The determinations were made in the faculty’s agro-chemistry laboratory, using appropriate methods and equipment. Following the results, the causes leading to the results were established and a series of conclusions and recommendations were drafted.

Implementation of electre methods in determining for recipient candidate for pamsimas program in district pringsewu

2018 ◽  
Vol 7 (2.27) ◽  
pp. 244
Author(s):  
Rita Irviani ◽  
Siti Mukodimah ◽  
Muhammad Muslihudin ◽  
Trisnawati .
Keyword(s):  
Drinking Water ◽  
Clean Water ◽  
Community Based ◽  
Sanitation Services ◽  
The World Bank ◽  
The People ◽  
Electre Method ◽  
The Government ◽  
One Year

Community-based Water Drinking Supply and Sanitation is one of the programs implemented by the Government of Indonesia with the support of the World Bank. One of the government targets under the RPJPN 2015-2019 is that Indonesia can provide drinking water and sanitation services for the people of Indonesia. The ELECTRE method is chosen because it is able to select the best alternative from the existing alternatives. This research used seven criteria as reference in determining for recipient candidate for PAMSIMAS program. The number of incidents of diarrheal diseases in one year (number of incidents), the number of people who have not used safe drinking water (individual), the number of people who have not used the toilet, the financial ability of the region, the income of the villagers, the distance of the source of clean water from the settlement, the availability of clean water. In addition to the criteria is also used the quality of the criteria to determine the best alternative and from the calculation of the alternative obtained the greatest value contained in A4 with value E = 4 and alternative A5 with the value E =4 thereby alternatives 4 and 5 are viable alternatives to the prospective recipient villages of the PAMSIMAS program in Pringsewu district.  

Control of heavy metal emission from metal plating industry in a german river basin

1998 ◽  
Vol 38 (4-5) ◽  
pp. 121-129 ◽  
Author(s):  
Harro Bode
Keyword(s):  
Heavy Metal ◽  
Industrial Effluents ◽  
Wastewater Sludge ◽  
Industrial Emissions ◽  
Limit Values ◽  
Metal Plating ◽  
Receiving Waters ◽  
Agricultural Use ◽  
Heavy Metal Emissions

The introduction of clear limits for the indirect discharge of heavy metals in Germany has greatly reduced the emissions from metal plating industry. Despite the more than 500 metal plating workshops within the Ruhr catchment area the current requirements for water quality of riverwater are met in the Ruhr (even the German limit values for drinking water are met). Nevertheless the industrial emissions into the sewers are still above the permitted level and above what routine checks of the industrial effluents lead to believe. Thus with respect to the German wastewater sludge regulation half of the dry sludge solids must be excluded from agricultural use. The complete implementation of legal requirements by all workshops will further diminish the heavy metal emissions into wastewater sludge and receiving waters.

scholarly journals Water Quality Assessment of the Nile Delta Lagoons

2020 ◽  
Vol 13 ◽  
pp. 117862212096307
Author(s):  
Karim M Morsy ◽  
Amrit K Mishra ◽  
Mona M Galal
Keyword(s):  
Water Quality ◽  
Trace Metals ◽  
Nile Delta ◽  
Sediment Quality ◽  
Oxygen Demand ◽  
Industrial Effluents ◽  
Water Quality Assessment ◽  
Fish Mortality ◽  
Water And Sediment

Nile Delta Lagoons have been formed 7000 years before the present. The lagoons were aqua-cultural and ecological keystones for the early Egyptian agricultural civilization. The water quality of Nile Delta Lagoons has been deteriorated with the economic development, population rapid increase, and the related industrialization, which exert high pressure on the surrounding environment. The 4 lagoons (1) Maryut, (2) Edku, (3) Burullus, and (4) Manzala are large is surface area, shallow in depth and located on the Nile Delta that receive great amounts of agricultural drainage, sewage, and industrial effluents before discharging into the Mediterranean Sea. The aim of this study is to monitor and assess the water and sediment quality of the lagoons. In light of this assessment, it was found that excessive nutrients are discharged into these lagoons causing severe eutrophication. In addition, relatively low values of dissolved oxygen were recorded causing fish mortality in the lagoons which amplifies in summer as the temperature increases. The article also examined the physical and biological parameters in addition to the chemical concentration of trace metals (Zn, Fe, Pb, Mn, Cr, and Cd) in the water and sediment samples that were collected from the 4 lagoons. High values of biological oxygen demand, chemical oxygen demand, total coliform, fecal coliform, fecal streptococci, ammonia (NH3), total nitrogen, and total phosphorus were recorded. In addition, high concentrations of trace metals were found in the water and sediments of the 4 lagoons.

scholarly journals Spatial analysis of water quality of the Karra River, Hetauda, Nepal

2016 ◽  
Vol 8 (1) ◽  
pp. 58-65
Author(s):  
Sadhana Pradhanang
Keyword(s):  
Water Quality ◽  
Dissolved Oxygen ◽  
Surface Waters ◽  
Industrial Wastewater ◽  
Good Condition ◽  
Oxygen Demand ◽  
Industrial Effluents ◽  
Physico Chemical ◽  
Water Region

The assessment of water quality of Karra River in Hetauda, Nepal was carried out by determining the changes in the concentration levels of eight physico-chemical parameters (pH, Electric conductivity (EC), bicarbonate, dissolved oxygen (DO), silica, chemical oxygen demand (COD), phosphate and nitrate). The samples were collected from upstream, industrial belt and downstream of the Karra River. The Karra River is the dumping ground for industrial effluents of Hetauda industrial district (HID). On analysis, the concentrations of most of the physico-chemicals parameters were found to be above the prescribed limits for industrial wastewater into inland surface waters. Dissolved Oxygen was found to be in the range of 0.49- 8.47 mg/L while COD, nitrate and phosphate were recorded in the range of 8.3-367 mg/L, 0.35- 78.22 mg/L and 0.01-1.64 mg/L, respectively. Concentrations of most of these parameters were within the prescribed limits in the samples collected from upstream and downstream, revealing the river still in good condition at these points indicating less human interference at the head water region and good self-purification capacity at downstream. However the concentrations of the pollutants’ parameters are higher at the sample points just after effluent discharge.Journal of Hydrology and Meteorology, Vol. 8(1) p.58-65

scholarly journals INVESTIGATION OF ETP FACILITIES AND THE INDUSTRIAL EFFLUENTS QUALITY: A CASE STUDY IN NOAKHALI INDUSTRIAL AREA, BANGLADESH

2020 ◽  
Vol 14 (2) ◽  
pp. 151-162
Author(s):  
Md. Shiblur Rahaman ◽  
Fozia Momotaz ◽  
Afrida Nurain ◽  
Protima Sarker ◽  
Sahoko Ichihara
Keyword(s):  
Treatment Plant ◽  
Chloride Concentration ◽  
Oxygen Demand ◽  
Industrial Effluents ◽  
Industrial Area ◽  
Effluent Treatment ◽  
Wastewater Disposal ◽  
Untreated Wastewater ◽  
Under Construction

Untreated wastewater disposal from industries has been a crucial environmental issue for developing countries like Bangladesh. The current study aims to investigate the status of Effluent Treatment Plant (ETP) and the quality of effluents in the Noakhali industrial area, Bangladesh. Total 10 industries were surveyed and the ETP status showed that about 30% of industries do not have ETP facilities and only 30% of industries use their ETP for the treatment of the effluents where the rest of the industry’s ETPs were under construction or exit but not used. Effluent samples were collected from seven locations near the discharge points of various industries. All the physicochemical parameters were determined using standard analytical procedures and analyzed the values comparing with the guideline standard by the Department of Environment (DoE), Bangladesh. The average values of electric conductivity (EC) have exceeded the tolerable limit in maximum effluent samples. On the contrary, the temperature, pH, and total dissolved solids (TDS) values were within the standard limit for all of the collected effluent samples. The chloride concentration of the three effluent samples surpassed the limit. The biological oxygen demand (BOD) and chemical oxygen demand (COD) limit were exceeded for the effluent sampling sites S-6 and S-7 collected near the food and beverage industry. Besides, the maximum dissolved oxygen (DO) values of the effluents were below the standard which indicates poor water quality. Environmental nuisance is producing in Noakhali industrial area as maximum industries have not enough wastewater treatment facilities. Present study demonstrated that it is obvious to operate the ETP regularly for improving the quality of effluents to save our native environment from the harmful effects of wastewater.

scholarly journals PENGARUH PARTISIPASI MASYARAKAT DAN KINERJA PENGELOLA TERHADAP KUALITAS PELAYANAN PENYEDIAAN SARANA AIR MINUM DAN SANITASI BERBASIS MASYARAKAT DI KABUPATEN ROKAN HULU

2019 ◽  
Vol 2 (3) ◽  
pp. 1-18
Author(s):  
Bisman ◽  
Muchlis Hamdi ◽  
Aries Jaenuri ◽  
Kusworo
Keyword(s):  
Drinking Water ◽  
Quality Of Service ◽  
Linear Regression ◽  
Community Participation ◽  
Service Provision ◽  
Sampling Technique ◽  
Cluster Sampling ◽  
Community Based ◽  
The People

Tujuan penelitian ini untuk menganalisis pengaruh partisipasi masyarakat dan kinerja pengelola terhadap kualitas pelayanan Penyediaan Sarana Air Minum dan Sanitasi Berbasis Masyarakat di Kabupaten Rokan Hulu. Populasi yaitu masyarakat yang memanfaatkan program Pamsimas dari tahun 2008 hingga 2018 sebanyak 14.605 kepala keluarga yang tersebar sebanyak 111 desa di Kabupaten Rokan Hulu. Jumlah sampel menggunakan rumus Slovin sebanyak 390 orang responden, dan teknik pengambilan sampel secara cluster sampling. Pengambilan informasi dari tanggapan responden menggunakan kuesioner denganskala likert dan dianalisis dengan regresi linear berganda. Hasil penelitian menunjukan partisipasi masyarakat dan kinerja pengelola berpengaruh positif dan signifikan terhadap kualitas pelayanan baik secara parsial maupun secara simultan.  AbstractThe purpose of this study was to analyze the effect of community participation and manager's performance on the quality of service provision of Community-Based Drinking Water and Sanitation Facilities in Rokan Hulu Regency. The population is the people who use the Pamsimas program from 2008 to 2018 as many as 14,605 heads of family spread out as many as 111 villages in Rokan Hulu Regency. The number of samples using the Slovin formula were 390 respondents, and the sampling technique was cluster sampling. Retrieval of information from respondents' responses using a questionnaire with a Likert scale and analyzed by multiple linear regression. The results showed that community participation and manager's performance had a positive and significant effect on service quality, either partially or simultaneously.

Sign in / Sign up

Export Citation Format

Share Document