scholarly journals Assessment of Mineral Accumulation by Lysinibacillus sphaericus from Restaurant Liquid Waste

2018 ◽  
pp. 1-8
Author(s):  
Adebisi Musbaudeen Sulaimon ◽  
Babatunde Jadesola Aderiye ◽  
Adebowale Toba Odeyemi
Keyword(s):  
Heavy Metals ◽  
Physicochemical Parameters ◽  
Microbial Growth ◽  
Liquid Waste ◽  
Metabolic Process ◽  
Waste Collection ◽  
Mineral Contents ◽  
Waste Products ◽  
Lysinibacillus Sphaericus ◽  
Liquid Wastes

Presence of microorganisms and relatively high mineral contents mainly heavy metals in waste generated from restaurants and released into the environment may indicate a negative outcome of a microbial metabolic process with serious economic and health implications. Therefore it is justifiable to examine the minerals contents and microbial resistance/accumulation of restaurant liquid wastes with the view to controlling environmental hazard through the removal of pollutants in the waste products, hence this study. Restaurant wastewater are collected from washing dishes and waste collection tank, then mixed and analyzed for the presence and quantity of minerals contents. The physicochemical parameters such as metals, heavy metals and active ingredients of the waste were evaluated. The ability of Lysinibacillus sphaericus to accumulate the minerals was also examined.  The results showed that the sample was composed of magnesium (54.4 ± 0.10 mg/L), potassium (23.2 ± 0.01 mg/L), sodium (39.2 ± 0.02 mg/L), zinc (0.61± 0.01 mg/L), copper (0.08 ± 0.01 mg/L) and iron (31.6± 0.03 mg/L). The presence of high amount of some minerals in wastewater is an indication that the environment may be polluted if the wastewaters are released in an uncontrolled manner. Also, the ability of Lysinibacillus sphaericus to assimilate these suggests that the wastes offers favourable condition for microbial growth and are therefore very susceptible to bioaccumulation.

scholarly journals Quality Assessment of Selected Ground Water Sources Around a University Teaching Hospital Liquid Waste Treatment Plant

2021 ◽  
Author(s):  
Elijah Abakpa Adegbe ◽  
Lois Riyo Maina ◽  
Shola Elijah Adeniji ◽  
Opeoluwa Olusola Fasanya ◽  
Stanley Irobekhian Reuben Okoduwa
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Teaching Hospital ◽  
Physicochemical Parameters ◽  
Waste Treatment ◽  
Treatment Plant ◽  
Liquid Waste ◽  
University Teaching ◽  
Dug Wells ◽  
Waste Treatment Plant

Abstract Background:The study conducted a comprehensive assessment of the quality of selected groundwater sources around the liquid waste treatment plant of Ahmadu University Teaching Hospital Shika, Nigeria. Water samples were collected from four (4) hand-dug wells following standard procedures, ten (10) physicochemical parameters and seven (7) heavy metals were analyzed.Results: All the physicochemical parameters studied were within the WHO specified limits except for DO which was less and turbidity which was higher. Heavy metals were found in the all the groundwater sources that were studied. However, the concentration of some heavy metals exceeded the specified limits recommended by the World Health Organization (WHO). The heavy metal presence in the groundwater sources may be connected to human activities such as waste disposal containing these metals around the groundwater sources and liquid waste from the hospital which can may have seeped into the wells.Conclusion: By implication, this study shows that the hand-dug wells were not safe for drinking. It is recommended that wells be sited away from dumpsites and waste treatment plants and effluents from waste treatment plants should also be properly treated before their subsequent discharge into the environment. This study has generated a baseline data that will be useful in monitoring heavy metal pollution.

scholarly journals Treatment of the uncontrolled landfill of Casablanca city by naturals materials

2021 ◽  
Vol 314 ◽  
pp. 07005
Author(s):  
Sara Ghazali ◽  
Abdelghani Laamyem
Keyword(s):  
Heavy Metals ◽  
Fly Ash ◽  
Physicochemical Parameters ◽  
Agricultural Soil ◽  
Bottom Ash ◽  
Liquid Waste ◽  
Oxygen Demand ◽  
Uncontrolled Landfill ◽  
Sea Sands ◽  
Made In

This work treats the leachate from the uncontrolled landfill of Casablanca city using the infiltration-percolation technique. To do this, we carried out a comparative study of the filtrations on different matrices to choose the best filtering medium. We used silt, fly ash, bottom ash, agricultural soil and sea sands from the Casablanca coast. The parameters studied are: Chemical Oxygen Demand (COD), pH and heavy metals. The results obtained from adsorption technique show that these matrices used can be an effective adsorbent for the reduction of physicochemical parameters and the elimination of heavy metals. A revaluation of the filtering sludge made in the field of pottery. The results observed are satisfactory at all levels, whether in the reuse of this liquid waste, in the field of irrigation or the recycling of filter matrices.

scholarly journals Enhancement in physicochemical parameters and microbial populations of mushrooms as influenced by nano-coating treatments

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Rokayya Sami ◽  
Abeer Elhakem ◽  
Amina Almushhin ◽  
Mona Alharbi ◽  
Manal Almatrafi ◽  
...  
Keyword(s):  
Physicochemical Parameters ◽  
Microbial Growth ◽  
Research Work ◽  
Microbial Populations ◽  
Coating Film ◽  
Epidermal Structure ◽  
Nano Coating ◽  
Soluble Solid ◽  
Button Mushrooms ◽  
White Button Mushrooms

AbstractWhite button mushrooms are greatly high perishable and can deteriorate within a few days after harvesting due to physicomechanical damage, respiration, microbial growth of the delicate epidermal structure. For that reason, the present research work was applied to evaluate the effect of chitosan combination with nano-coating treatments on physicochemical parameters and microbial populations on button mushrooms at chilling storage. Nano coating with the addition of nisin 1% (CHSSN/M) established the minimum value for weight loss 12.18%, maintained firmness 11.55 N, and color index profile. Moreover, O2% rate of (CHSSN/M) mushrooms was the lowest at 1.78%; while the highest rate was reported for CO2 24.88% compared to the untreated samples (Control/M) on day 12. Both pH and total soluble solid concentrations increased during storage. Results reported that the (CHSS/M) mushroom significantly (P < 0.05) reduced polyphenol oxidase activity (24.31 U mg−1 Protein) compared with (Control/M) mushrooms that increased faster than the treated samples. (CHSSN/M) treatment was the most efficient in the reduction of yeast and mold, aerobic plate microorganisms (5.27–5.10 log CFU/g), respectively. The results established that nano-coating film might delay the aging degree and accompany by marked prolongation of postharvest mushroom freshness.

The influence of some physicochemical parameters on the microbial growth in soils

2002 ◽  
Vol 394 (1-2) ◽  
pp. 123-131 ◽  
Author(s):  
Lisardo Núñez-Regueira ◽  
O Núñez-Fernández ◽  
J.A Rodrı́guez Añón ◽  
J Proupı́n Castiñeiras
Keyword(s):  
Physicochemical Parameters ◽  
Microbial Growth

scholarly journals Evaluation of Different Treatment Processes for Landfill Leachate Using Low-Cost Agro-Industrial Materials

Processes ◽  
2020 ◽  
Vol 8 (1) ◽  
pp. 111 ◽  
Author(s):  
Tawfiq J. H. Banch ◽  
Marlia M. Hanafiah ◽  
Abbas F. M. Alkarkhi ◽  
Salem S. A. Amr ◽  
Nurul U. M. Nizam
Keyword(s):  
Heavy Metals ◽  
Physicochemical Parameters ◽  
Low Cost ◽  
Hazardous Substances ◽  
Leachate Treatment ◽  
Treatment Processes ◽  
Removal Of Heavy Metals ◽  
Industrial Materials ◽  
Palm Oil Mill ◽  
Complex Liquid

Leachate is a complex liquid that is often produced from landfills, and it contains hazardous substances that may endanger the surrounding environment if ineffectively treated. In this work, four leachate treatment applications were examined: combined leachate/palm oil mill effluent (POME) (LP), leachate/tannin (LT), pre-(leachate/tannin) followed by post-(leachate/POME) (LT/LP), and pre-(leachate/POME) followed by post-(leachate/tannin) (LP/LT). The aim of this work is to evaluate and compare the performance of these treatment applications in terms of optimizing the physicochemical parameters and removing heavy metals from the leachate. The highest efficiency for the optimization of the most targeted physicochemical parameters and the removal of heavy metals was with the LP/LT process. The results are indicative of three clusters. The first cluster involves raw leachate (cluster 1), the second contains LP and LP/LT (cluster 2), and the third also consists of two treatment applications, namely, LT and LT/LP (cluster 3). The results demonstrate that LP/LT is the most appropriate method for leachate treatment using low-cost agro-industrial materials.

scholarly journals Mineral content of different bottled water available in Bangladesh: Assessment of their compliance with current regulations

2013 ◽  
Vol 38 (1) ◽  
pp. 7-15 ◽  
Author(s):  
Mohammad Arifur Rahman ◽  
Md Abdus Salam ◽  
Abdus Salam ◽  
Madhusudan Roy ◽  
Nargis Jahan Ara ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Mineral Content ◽  
Bottled Water ◽  
Human Consumption ◽  
Distilled Water ◽  
Mineral Contents ◽  
Lead And Cadmium ◽  
Council Directive ◽  
Guideline Values ◽  
The University

Nine bottled water brands collected from retail shops and food shops beside the University of Dhaka were analyzed for their major and trace element constituents to ascertain their suitability for human consumption. The results obtained were compared with parametric values (PVs) set by European Community Council Directive 98/83/EC and the guideline values (GVs) recommended by WHO. It was found that the majority of the brands tested were low in mineral contents. Moreover, lower values of hardness, TDS and conductivity than the prescribed limits of WHO showed that water was deficient in essential minerals. Minerals like magnesium, potassium, calcium were present in some cases in such a low concentration that water seemed to be as good as distilled water. In case of heavy metals, only lead and cadmium were found to be below the detection limit (0.001 mg/L) which indicates bottled water brands are better for drinking. DOI: http://dx.doi.org/10.3329/jasbs.v38i1.15316 J. Asiat. Soc. Bangladesh, Sci. 38(1): 7-15, June 2012

scholarly journals Biosorption of Cu(II) Metal ions in Fixed Column by using Coconut Husk Waste

2018 ◽  
Vol 34 (4) ◽  
pp. 2192-2196 ◽  
Author(s):  
Harmiwati N.H ◽  
Khairul Akli ◽  
Rita Youfa ◽  
Maria Isfus Senjawati ◽  
Miftahul Khairati
Keyword(s):  
Heavy Metals ◽  
Continuous Flow ◽  
New Technology ◽  
Liquid Waste ◽  
Optimum Flow Rate ◽  
Coconut Husk ◽  
Bed Height ◽  
Optimum Flow ◽  
Heavy Metal Waste ◽  
Continuous Flow Method

A new technology has been currently developed for the removal of heavy metal waste in water, called biosorption. Biosorption technology has been widely used to remove heavy metals from liquid waste. The potential biomass which can be used as bio sorbent was activated coconut husk waste. By using the continuous flow method and activated coconut husk as bio sorbent, the obtained optimum flow rate and bed height of bio sorbent were 2 mL/min and 0.1 g with adsorption capacity of 188.322 mg/g.

scholarly journals Impact of Abattoir Wastes on Trace Metal Accumulation, Speciation, and Human Health–Related Problems in Soils Within Southern Nigeria

2020 ◽  
Vol 13 ◽  
pp. 117862211989843 ◽  
Author(s):  
Godwin Asukwo Ebong ◽  
Ekomobong Samuel Ettesam ◽  
Emmanuel Udo Dan
Keyword(s):  
Heavy Metals ◽  
Organic Matter ◽  
Human Health ◽  
Health Problems ◽  
Control Plot ◽  
Residual Fraction ◽  
Anthropogenic Factors ◽  
Waste Products ◽  
Environmental Models ◽  
Southern Nigeria

The slaughtering of animals and processing of meats for human consumption generates enormous wastes which are not properly managed in most developing nations including Nigeria. Majority of people in Akwa Ibom state in southern Nigeria depend on meat as their major source of protein, and abattoir wastes are applied in farms as organic manure by some farmers. This study examined the role of abattoir-related waste products in the physicochemical properties, total metal, and metal speciation of the soil. The data obtained were also subjected to some treatments using some environmental models to establish the degree of contamination by the parameters determined, studied locations, and the associated human health problems. Samples were collected from 5 designated abattoirs in Akwa Ibom state. Thirty composite samples were used for the research. Results obtained showed higher levels of pH, electrical conductivity, organic matter, and cation exchange capacity in the abattoir waste–impacted soils than in the control plot. Levels of pseudo total heavy metals were also higher in the studied soils than in the control plot. The mean values of the metals are below 400, 85, 140, 36, 100, and 35 mg/kg of recommended limits for Fe, Pb, Zn, Cu, Cr, and Ni, respectively by the Federal Environmental Protection Agency (FEPA) in Nigerian soil. The results also revealed that Fe and Cr existed mainly in residual fraction. However, Zn, Cu, and Ni existed principally in the form bound to organic matter/sulfide. In addition, we detected that Pb existed mainly in the reducible fraction. Disparities were also observed in the speciation results of the metals between the studied soils and the control plot. Principal component analysis (PCA) indentified that both the geogenic and anthropogenic factors contributed to the accumulation of metals determined in the studied soils. Variable relationships were also observed for the heavy metals determined in the studied soils. Fe showed a high-risk potential, and children were more vulnerable due to its toxicity. We conclude this study was able to expose the consequences of indiscriminate dumping of abattoir wastes on the quality of soil and the associated human health problems.

scholarly journals Phytoremediation of Chromium from Electroplating Effluent Treatment Plant (Etp) Sludge Using Helianthusannuus L.

2018 ◽  
Vol 34 (6) ◽  
pp. 2977-2982
Author(s):  
M. J. Suresh ◽  
P. Rajiv
Keyword(s):  
Heavy Metals ◽  
Helianthus Annuus ◽  
Physicochemical Parameters ◽  
Food Source ◽  
Treatment Plant ◽  
Effluent Treatment ◽  
Electroplating Effluent ◽  
Helianthus Annuus L ◽  
Effluent Treatment Plant ◽  
Pre Treatment

Phytoremediation is one of the best methods in the treatment of sludge from industries because the pollutants present in the sludge are the food source for plants. So, the present study dealt with wedging the electro-plated sludge with red soil for 30 days and using it for the growth of Helianthus annuus L. The sludge and soil were blended in different concentrations C1, C2, C3, C4, C5 and C6 (for the pre-treatment). Physicochemical parameters (pH, ammoniacal nitrogen, potassium and phosphate) and heavy metals (Ar, Cd, Pb, Hg, Ni and Cr) of raw sludge, soil and ETP-treated-sludge with soil were analysed. After inspecting the physicochemical parameters of raw sludge and treated sludge, the soil-treated-sludge was used for the growth of Helianthus annuus L. Phytoremediation by Helianthus annuus L. has made considerable changes in the physicochemical properties of the soil, specially denoting the reduction of chromium. Thus, the work concludes that the pre-treated sludge provides a pathway for the uptake of heavy metals through the process of phytoremediation.

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