Effect of effluent generated from coffee processing plant on the water bodies and human health in its vicinity

Haddis, Alemayehu; Devi, Rani

doi:10.1016/j.jhazmat.2007.06.094

Cited by 75 publications

(50 citation statements)

References 4 publications

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“…Table 1 shows the physicochemical composition of CPWW. The majority of the values found for coffee pulp were similar to those reported by other authors [12,15,16,23,24]. The acidic pH is due to the presence of organic acids in berry skin and pulp.…”

Section: Effluent Analysessupporting

confidence: 90%

“…Various researchers reported high pollution from wet processing [6,12,16,24]. As a result, the polluting potential of the coffee processing factories is enormous as shown by the BOD 5 and COD content of coffee effluent reaching up to 37,944 and 45,955 mg L −1 respectively, this high level of BOD 5 and COD in the CPWW might be due to the presence of high amount of organic substances and to the slowly degrading compounds present.…”

Section: Cpww Physicochemical Characterizationmentioning

confidence: 99%

“…Furthermore, in the literature, it has been found that the CPWW is very harmful for surrounding water bodies and aquatic life if discharged directly into the surface waters [13][14][15] as well as in human health (causing many severe health problems, such as dizziness, eye, ear and skin irritation, stomach pain, nausea and breathing problems) of all the residents of nearby areas [16].…”

Section: Introductionmentioning

confidence: 99%

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Evaluation of Hydraulic Retention Time on Treatment of Coffee Processing Wastewater (CPWW) in EGSB Bioreactor

et al. 2017

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Abstract:The coffee processing agro-industry generates large quantities of wastewater requiring systematic treatment prior to disposal. For this reason, the aim of this study was to evaluate the hydraulic retention times (HRT) in treatment of coffee processing wastewater (CPWW) using a laboratory scale Expanded Granular Sludge Bed (EGSB) bioreactor at different HRT (3 to 9 days). The EGSB was evaluated in mesophilic condition (26 ± 2 • C) with an average pH of 7.5 ± 0.2 to determine the chemical oxygen demand (COD) removal efficiency. According to the results, the COD removal efficiency increases from 94 to 98% when the HRT increase from 3 to 9 days; the α factor remained stable (0.98) throughout the evolution of the bioreactor. The HRT´s between 7-9 days generated effluents capable to be dischargeable into water bodies with a permitted COD concentration according to World Health Organization (WHO) and Official Mexican Environmental Regulations permissible limits. Results evidenced that the HRT of 9 days was the one that greater COD removal generated, so the EGSB bioreactor can be a sustainable alternative to solve the environmental problems, compared to other conventional methods to CPWW treatment.

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Section: Effluent Analysessupporting

confidence: 90%

Section: Cpww Physicochemical Characterizationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Evaluation of Hydraulic Retention Time on Treatment of Coffee Processing Wastewater (CPWW) in EGSB Bioreactor

et al. 2017

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“…Several studies reported that untreated waste from traditional and modern industries is threatening surface waters worldwide, and it is severe in developing countries (6) . Water pollution is the gloomy setback for the development in coffee producing countries (7,8) , and this also appears to be the case in Ethiopia and Vietnam (9)(10)(11) . It is estimated that more than two million tons of coffee waste is generated yearly (12) .…”

Section: Envrinmental Effects Of Coffee Processingmentioning

confidence: 99%

Overview of Coffee Waste and Utilization for Biomass Energy Production in Vietnam

Thriveni¹,

Kim²,

Whan³

2017

Journal of Energy Engineering

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In this paper, the carbon resources recycling of the overview of coffee waste generation in Vietnam. Since few years, there has been a significant research studies was done in the areas of coffee waste generation areas and also waste water generation from coffee production. The coffee residue (solid) and waste water (liquid) both are caused the underground water contamination and also soil contamination. These residues contain high organic matter and acid content leads to the severe threat to environment. In second stage of coffee production process, the major solid residue was generated. Various solid residues such as spent coffee grounds, defective coffee beans and coffee husks) pose several environmental concerns and specific problems associated with each type of residue. Due to the unlimited usage of coffee, the waste generation is high. At the same time, some researchers have been investigated the spent coffee wastes are the valuable sources for various valuable compounds. Biodiesel or biomass productions from coffee waste residues are the best available utilization method for preventing the landfill problems of coffee waste residues.

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“…In fact, they could pose serious threats to the surrounding water bodies, aquatic life, and human health if discharged directly into surface waters like rivers, streams or lakes (Haddis and Devi, 2008). Anaerobic digestion in expanded granular sludge bed (EGSB) bioreactors has been proposed as a feasible low cost technology to treat high strength wastewaters, while biogas production from renewable resources could also be targeted (Zhang et al, 2007;Shin et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Anaerobic treatment of agro-industrial wastewaters for COD removal in expanded granular sludge bed bioreactor

et al. 2017

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Effect of effluent generated from coffee processing plant on the water bodies and human health in its vicinity

Cited by 75 publications

References 4 publications

Evaluation of Hydraulic Retention Time on Treatment of Coffee Processing Wastewater (CPWW) in EGSB Bioreactor

Evaluation of Hydraulic Retention Time on Treatment of Coffee Processing Wastewater (CPWW) in EGSB Bioreactor

Overview of Coffee Waste and Utilization for Biomass Energy Production in Vietnam

Anaerobic treatment of agro-industrial wastewaters for COD removal in expanded granular sludge bed bioreactor

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