scholarly journals Physico-chemical and microbiological quality of M’Zar wastewater treatment plant effluents and their impact on the green irrigation of the Golf course

2019 ◽  
Vol 8 (S1) ◽  
pp. 439-445
Author(s):  
Abir Chahouri ◽  
Nadia El Ouahmani ◽  
Redouane Choukrallah ◽  
Bouchra Yacoubi
Keyword(s):  
Treatment Plant ◽  
Microbiological Quality ◽  
International Standards ◽  
Treated Wastewater ◽  
Golf Course ◽  
Microbiological Analysis ◽  
Temperature Conductivity ◽  
Physico Chemical ◽  
Reuse Of Treated Wastewater

Abstract Purpose Reuse of treated wastewater (TWW) for irrigation can be an effective strategy in Morocco to overcome the pressure on freshwater resources. The M’zar wastewater plant is based on percolation infiltration treatment, allowing the purification of the wastewater of Agadir, and with its UV disinfection system, it is now possible to reuse this water for irrigation. In this sense, the aim of our study is to evaluate the microbiological and physicochemical quality of the treated wastewater of this station, used for irrigation of a Golf course as well as to determine its impact on grass and soil. Methods A monitoring of TWW quality was carried out monthly on the level of the Ocean’s Golf on water samples, grass and soil. This monitoring is related to the physicochemical (pH, temperature, conductivity, STD, COD, and BOD5) and bacteriological characteristics by counting the indicators of faecal contamination, faecal coliforms (FC), faecal streptococci (FS), Salmonella and Vibrios as well as sulphito-reducers spores (SRS). Results The results of microbiological analysis in the three compartments confirm the presence of various organisms such as FC, FS, and SRS in a very significant number with no load in Salmonella and Vibrios during our study period. For physicochemical analyses, we observed that only the conductivity showed fairly a high value of 6.38 dS/m. Conclusion The obtained physicochemical and bacteriological results revealed that the treated wastewater with the M’zar plant complies with national and international standards.

Survey of the Microbiological Quality of Whole, Black Pepper and Turmeric Powder Sold in Retail Shops in Bombay

1987 ◽  
Vol 50 (5) ◽  
pp. 401-403 ◽  
Author(s):  
H. GEETA ◽  
P. R. KULKARNI
Keyword(s):  
Microbiological Quality ◽  
Black Pepper ◽  
Poor Quality ◽  
International Standards ◽  
Microbiological Analysis ◽  
Fungal Flora ◽  
Plate Counts ◽  
The City

Microbiological analysis of loosely packed, whole, black pepper and turmeric powder obtained from retail shops in the city of Bombay revealed that the samples of both spices were highly contaminated. Aerobic plate counts of black pepper ranged from 12.1 × 107 to 81.9 × 108 c.f.u. per gram and turmeric powder from 4.1 × 107 to 73.6 × 108 c.f.u. per g. In both spices, mesophilic sporeformers like Bacillus occurred. Coliforms ranged in counts from 102-103 per g. Fungal counts ranged from 0.6 × 104 to 16 × 105 per g for black pepper and from 0.5 × 103 to 11.1 × 105 per g for turmeric powder. Fungal flora included mainly Aspergillus spp. with the occurrence of Mucor in some of the samples. No other organisms were observed in the dilutions plated. The extent of contamination was slightly greater in pepper than in turmeric, although both spices were of a poor quality when compared with international standards.

scholarly journals Physico-chemical and microbiological characteristics of water for domestic use in Cotonou in the republic of Benin

2021 ◽  
Vol 4 (1) ◽  
pp. 188-197
Author(s):  
Honoré Ubald M Adande ◽  
Pauline Houdagba, Rodrigue C Landeou ◽  
Expédit W Vissin
Keyword(s):  
Microbiological Quality ◽  
Fecal Coliforms ◽  
Household Waste ◽  
Microbiological Analysis ◽  
Domestic Water ◽  
Household Level ◽  
Physico Chemical ◽  
Republic Of Benin ◽  
The City

Water is the source of life. It is essential for the survival of all living things. However, its alteration becomes harmful to humans. In Cotonou, the main city of Benin, the quality of drinking water is worrying because of many factors such as environmental pollution and poor hygiene around water sources. In fact, poorly ecological management methods of household waste pose risks of contamination of soil and water resources. This study aims to assess the quality of domestic water for households in the city of Cotonou. The methodology adopted is summed up in a physico-chemical and microbiological analysis of thirty water samples taken from households in the 13 districts of the city of Cotonou. The results obtained at the physicochemical level show that, apart from the waters of SONEB at the source, whose turbidity (5.6 NTU) complies with the standard which is 5 NTU, that of other sources is much greater than Standard. This indicates the presence of suspended solids in the water that may harbor microorganisms harmful to humans. With regard to microbiological quality, all the water sampled at household level contains E.Coli, the number of which is much higher than the Benin standard which sets at 0/1 ml of water. In addition, the water sampled from the wells contains high numbers of fecal coliforms. As for SONEB water, the presence of coliforms was determined but with lower numbers than well water (50 / ml at household level and 2 / ml at source level.

Characterisation of Treated Wastewater of M’Zab Valley for Reuse in Irrigation (Southern Algeria)

2018 ◽  
Vol 40 ◽  
pp. 78-87
Author(s):  
Rachid Zegait ◽  
Boualem Remini
Keyword(s):  
Treatment Plant ◽  
Poor Quality ◽  
International Standards ◽  
Treated Wastewater ◽  
Treated Water ◽  
Quality Water ◽  
Precious Resource ◽  
Wastewater Pollution ◽  
Poor Quality Water

The reuse of treated wastewater can reduce the water deficit in Saharan areas, especially in Ghardaia. The M'Zab wastewater treatment plant (WWTP) is designed to treat wastewater by the natural lagoon system, and to reuse the treated water for irrigation of agricultural perimeters in order to contribute to sustainable development efforts in the region. Indeed the present work aims to search for the study of the possibility of reusing treated wastewater of M 'Zab in irrigation, to do this, we established and followed the evolution of the various physical-chemical and bacteriological analysis for two years (2013-2015), to study the effectiveness of biological treatment in the reduction of wastewater pollution, and then compare the results of treated water with national and international standards in the field of 'irrigation. The results showed that the treated water is considered as poor quality water is not usable only for some salt-tolerant species and on well-drained soil and leached, require additional treatments for ensured the quality of this precious resource.

scholarly journals Étude de la Performance du Dispositif de Traitement des Eaux UsÉes par Boues ActivÉes de la ville d’Al- Hoceima, Maroc

2016 ◽  
Vol 12 (17) ◽  
pp. 272
Author(s):  
Fouad Dimane ◽  
Khadija Haboubi ◽  
Issam Hanafi ◽  
Abdelouahad El Himri
Keyword(s):  
Industrial Wastewater ◽  
Sewage Treatment ◽  
Treatment Plant ◽  
Oxygen Demand ◽  
Fecal Coliforms ◽  
Treated Wastewater ◽  
Physico Chemical ◽  
Al Hoceima ◽  
The City ◽  
Reuse Of Treated Wastewater

Morocco has taken over the desire to ensure sustainable development and to promote the treatment of domestic and industrial wastewater. In this context, several sewage treatment plants were created, in order to protect the environment from direct discharges of wastewater, and to hope for the reuse of treated wastewater. The use of Activated sludge process in treating the wastewater has been the solution to many problems. In order to evaluate the performance of wastewater treatment plant of the city of Al-Hoceima (North of Morocco). We studied the physico-chemical and bacteriological parameters; we carried out a series of measures such as: temperature, pH and conductivity, the biochemical oxygen demand BOD5, the chemical oxygen demands COD, fecal coliforms (FC) and total coliforms (TC). Measurement of the BOD5, COD and TSS yields values give respectively 96%, 95% and 85%. The tests showed that the treated water can be obtained with a quality complying with the agricultural reuse.

DECOLOURIZATION AND COD REMOVAL OF WASEWATER FROM ETHANOL PRODUCTION PROCESS FROM MOLASSES BY COAGULANTION USING INORGANIC ALUM

2010 ◽  
Vol 13 (3) ◽  
pp. 92-102
Author(s):  
Trung Duc Le
Keyword(s):  
Ethanol Production ◽  
Oxygen Demand ◽  
Cod Removal ◽  
Treated Wastewater ◽  
Treatment Processes ◽  
Physico Chemical ◽  
Biological Methods ◽  
Treatment Step ◽  
Main Material

The industrial production of ethanol by fermentation using molasses as main material that generates large quantity of wastewater. This wastewater contains high levels of colour and chemical oxygen demand (COD), that may causes serious environmental pollution. Most available treatment processes in Vietnam rely on biological methods, which often fail to treat waste water up to discharge standard. As always, it was reported that quality of treated wastewater could not meet Vietnameses discharge standard. So, it is necessary to improve the treatment efficiency of whole technological process and therefore, supplemental physico-chemical treatment step before biodegradation stage should be the appropriate choice. This study was carried out to assess the effect of coagulation process on decolourization and COD removal in molasses-based ethanol production wastewater using inorganic coaglutant under laboratory conditions. The experimental results showed that the reductions of COD and colour with the utilization of Al2(SO4)3 at pH 9.5 were 83% and 70%, respectively. Mixture FeSO4 – Al2(SO4)3 at pH 8.5 reduced 82% of colour and 70% of COD. With the addition of Polyacrylamide (PAM), the reduction efficiencies of colour, COD and turbidity by FeSO4 – Al2(SO4)3 were 87%, 73.1% and 94.1% correspondingly. It was indicated that PAM significantly reduced the turbidity of wastewater, however it virtually did not increase the efficiencies of colour and COD reduction. Furthermore, the coagulation processes using PAM usually produces a mount of sludge which is hard to be deposited.

VERMICOMPOSTING TECHNOLOGY FOR STABILIZING THE SEWAGE SLUDGE FROM RURAL WASTE WATER TREATMENT PLANTS

2008 ◽  
Vol 3 (1) ◽  
Author(s):  
V. Lina Cardoso ◽  
C. Esperanza Ramírez ◽  
E. Violeta Escalante
Keyword(s):  
Rural Communities ◽  
Sewage Sludge ◽  
Low Cost ◽  
Waste Water Treatment ◽  
Treatment Plant ◽  
Microbiological Quality ◽  
Fecal Coliforms ◽  
Nitrogen And Phosphorus ◽  
Sludge Management

There are problems associated with sludge management in small treatment plants (<10 L/s) located in rural communities, due to costly conventional technology for sludge stabilization. Many of these plants have only sludge drying beds. Mexican Institute of Water Technology has proposed developing suitable low-cost technologies, one of which is vermicomposting a biodegradation system using earthworms of the species Eisenia foetida (earthworm) which stabilize sludge and reduce its pathogenicity. The objective of this work is to present two case studies where vermicomposting technology has been applied in Mexico. The first study corresponds to a plant where 4.8 m3/month of sludge are produced; for these wastes, a vermicomposting system was built and installed. The second study is a treatment plant where 9 m3/month of sludge are produced; experimental tests were conducted with sludge and water hyacinth and a vermicomposting system was designed. The vermicomposts were analyzed using parameters defined by Mexican standards. In regards to stabilization, TVS was reduced by 38% and the microbiological quality of the vermicompost was Class A and B, with a reduction in fecal coliforms and Helminth eggs according to NOM-004-SEMARNAT-2002. A CRETI (Corrosivity, Reactivity, Explosivity, Toxicity and Ignitability) analysis (NOM-052-SEMARNAT-2005) was used to show that the process reduced the concentration of releasable sulfides. The agronomic quality of the vermicompost exhibited a high content of organic matter comparable to many organic manures and high content of nutrients such as nitrogen and phosphorus. It is concluded that it is possible to improve the conditions of sewage sludge management in small plants of rural communities with a minimum investment (less than $10,000.00 USD) and with a requirement of a minimum area of 60 to 70 m2 for a production of less than 9 m3/month of dehydrated sludge (80% humidity).

scholarly journals Physico-Chemical and Microbiological Quality Assessment of Ice Blocks Sold in Selected Wet Markets in Manila, Philippines

2018 ◽  
Vol 52 (3) ◽  
Author(s):  
Leandro F. Salazar ◽  
Trishia Alexis I. Alvez ◽  
Janine Marie B. Balbedina ◽  
Javier Alfonso A. Torres ◽  
Ivanah Y. Tupaz ◽  
...  
Keyword(s):  
Microbiological Quality ◽  
National Standards ◽  
Residual Chlorine ◽  
E Coli ◽  
Physico Chemical ◽  
Apparent Color ◽  
Strict Compliance ◽  
Standard Limit ◽  
The City

Objective. The study aimed to determine the physico-chemical and microbiological quality of ice blocks sold in selected wet markets located in the city of Manila. Methods. Twenty-eight samples were collected from three markets. Microbiological quality was analyzed in terms of the presence or absence of coliforms with E. coli as indicator organism. Physico-chemical quality was determined by measuring turbidity, apparent color, pH, iron, and residual chlorine. Measurements obtained were compared with the 2007 Philippine National Standards for Drinking Water (PNSDW). Results. Results showed that all samples tested positive for coliforms while 25 out of the 28 samples were positive for E. coli. Mean turbidity was 2.74 ± 3.68 NTU; for both apparent color and iron tests, all samples complied with the PNSDW standard limit set; mean pH was 6.15 ± 0.64; and mean residual chlorine was 0.06 ± 0.02 mg/L. Average values of apparent color and iron comply with the PNSDW standards. Six out of 28 samples had turbidity values exceeding the standards. All samples were found to have residual chlorine levels below the standards. Conclusion. Ice in markets do not comply with key 2007 PNSDW standards and findings warrant strict compliance of ice quality from manufacturers to the point of distribution to protect consumer health.

Relationships of Microbial Quality of Retail Meat Samples and Sanitary Conditions1

1980 ◽  
Vol 43 (5) ◽  
pp. 385-389 ◽  
Author(s):  
C. JANE WYATT ◽  
V. GUY
Keyword(s):  
Bacterial Load ◽  
Microbiological Quality ◽  
Plate Count ◽  
Microbiological Analysis ◽  
Food Stores ◽  
Aerobic Plate Count ◽  
Quality Of Products ◽  
Meat Samples ◽  
Sanitary Conditions

A sanitation profile scoring form for evaluating sanitation in retail food stores was designed. The profile was tested in 10 Oregon retail markets to evaluate its ability to reflect sanitary conditions. At the time of inspection, samples of meat processed in-store were purchased for microbiological analysis to explore the feasibility of bacterial quality as a measurement of sanitary conditions. Microbiological tests performed included total aerobic plate count (A PC), coliform, Escherichia coli, Staphylococcus aureus, Clostridium perfringens, and Salmonella. Certain deficiencies were noted in the profile designed; however, it provides a means for objective, uniform measurement of sanitary conditions. Data show no correlation exists between microbiological quality of products processed in the store and total store profile sanitary conditions. Fifty percent of the products sampled exceeded bacterial load guidelines currently enforced in Oregon. These “high” counts appear to be directly related to poor temperature control.

scholarly journals Physico-Chemical Characteristics and Microbiological Quality of Broiler Chicken Pectoralis Major Muscle Subjected to Different Storage Temperature and Duration

Foods ◽  
2020 ◽  
Vol 9 (6) ◽  
pp. 741
Author(s):  
Muhamad Faris Ab Aziz ◽  
Muhammad Nizam Hayat ◽  
Ubedullah Kaka ◽  
Nitty Hirawaty Kamarulzaman ◽  
Awis Qurni Sazili
Keyword(s):  
Meat Quality ◽  
Broiler Chicken ◽  
Storage Temperature ◽  
Pectoralis Major Muscle ◽  
Microbiological Quality ◽  
Pectoralis Major ◽  
Cooking Loss ◽  
Storage Duration ◽  
Physico Chemical

Storage temperature and duration plays an important role in meat processing. Observations in poultry processing plants have shown a serious deviation in storage condition compared to the recommended procedures. Furthermore, there is still a paucity of evidence on the effects of storage temperature and duration on meat quality and microbial population. The aim of this study was to determine the effects of different temperature and duration during storage on physico-chemical properties and microbiological quality of broiler chicken Pectoralis major muscle. Eighty birds were slaughtered and processed, following which the packed boneless breast (PBB) (each bird was to provide two breast muscle samples; left breast and right breast) was divided into four groups, each consisted of 40 PBB. Each group was subsequently assigned to storage either at 4 °C, −10 °C, −18 °C or −40 °C, for 24 h before 20 PBB samples from each group were transported to the respective laboratory for meat quality and microbiological analysis. The remaining 20 PBB from each storage temperature were stored for 72 h before being transported for analysis. Results have shown significant increases in drip loss and cooking loss as the storage temperature decreases. Similarly, storage duration significantly affected cooking loss, of which, samples stored for 72 h exhibited higher cooking loss compared to those stored for 24 h. For color, significant differences were only observed in lightness (L*) and redness (a*) values. Longer duration of storage had significantly improved tenderness whereby, samples that have been stored for a shorter duration presented higher pH values. Populations of coliform and Salmonella decreased significantly with decreasing temperature and increasing storage duration.

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