COD and BOD reduction from coffee processing wastewater using Avacado peel carbon

Devi, Rani; Singh, Vinay Pratap; Kumar, Ashok

doi:10.1016/j.biortech.2007.03.039

Cited by 107 publications

(79 citation statements)

References 11 publications

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“…The moisture content of the sugarcane stalk is similar to the value of 8.1% reported by Brandão et al (2010). Silva et al (1998) The moisture content of the coffee husk is within the range of 5.8-8.5% reported by Devi et al (2008). The moisture content of the cotton stalk is within the range of 3.42-7.73% reported by Deng et al (2011).…”

Section: Moisture Contentsupporting

confidence: 75%

Availability and Physical Properties of Residues From Major Agricultural Crops for Energy Conversion Through Thermochemical Processes

Zhang¹,

Ghaly²,

Li³

2012

American Journal of Agricultural and Biological Sciences

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Plant residues from the major agricultural crops (wheat, rice, corn, soybean, sugarcane, coffee and cotton) are abundantly available renewable resources that can be used to supply energy through thermochemical conversion processes. The available amounts of plant residues from these crops and their physical properties (moisture content, particle size, bulk density and porosity) were determined. The annual residues from the wheat, rice, corn, soybean, sugarcane, coffee and cotton were 763.42, 698.10, 1729.92, 416.62, 16.85, 4.01 and 107.13 million tons, respectively. The total amount of plant residues was estimated at 3736.05 million tons with total energy content of 66.92 EJ. These residues can replace 2283.52 million tons of coal, 1551.78 million tons of oil and 1847.63 million m 3 of natural gas. The moisture contents were 7. 79, 6.58, 6.40, 7.30, 8.15, 7.86 and 7.45% for the wheat straw, rice straw, corn stalk, soybean stalk, sugarcane stalk, coffee husk and cotton stalk, respectively. The corn stalk and sugarcane stalk had a convex particle size distribution, the soybean stalk and cotton stalk had a concave particle size distribution, the wheat straw and rice straw had an increasing trend particle size distribution and the coffee husk had a decreasing trend particle size distribution. The average particle sizes for the wheat straw, rice straw, corn stalk, soybean stalk, sugarcane stalk, coffee husk and cotton stalk were 0.42, 0.40, 0.49, 0.43, 0.55, 0.67 and 0.38 mm, respectively. The average bulk density was 160.75, 166.29, 127.32, 242.34, 110.86, 349.06 and 230.55 kg m -3 for the wheat straw, rice straw, corn stalk, soybean stalk, sugarcane stalk, coffee husk and cotton stalk, respectively. The average porosity was 51. 25, 83.20, 58.51, 68.03, 77.58, 64.85 and 74.55% for the wheat straw, rice straw, corn stalk, soybean stalk, sugarcane stalk, coffee husk and cotton stalk, respectively. The results obtained from this study indicate that different plant residues have different physical properties.

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Section: Moisture Contentsupporting

confidence: 75%

Availability and Physical Properties of Residues From Major Agricultural Crops for Energy Conversion Through Thermochemical Processes

Zhang¹,

Ghaly²,

Li³

2012

American Journal of Agricultural and Biological Sciences

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“…This causes respiratory distress of fish, which shows erratic movements. Devi (1980) also reported high DO during monsoon and low during summer in Asmaansagar. Mohan (1980) recorded dissolved oxygen range as 4.61-6.68 mg/l in the winter season.…”

Section: Dissolved Oxygenmentioning

confidence: 80%

“…From the initial investigation, it was observed that the COD of untreated effluents was 3,682 mg/l and can be reduced up to 300 mg/l, respectively. Devi et al (2008) observed COD 22,000 mg/l on coffee processing waste water. Importance of organic matter in the ecology of bloom firming cyanobacteria has been reported by many workers.…”

Section: Chemical Oxygen Demandmentioning

confidence: 91%

Quality and management of wastewater in sugar industry

Poddar

Sahu

2015

Appl Water Sci

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Wastewater from sugar industries is one that has complex characteristics and is considered a challenge for environmental engineers in terms of treatment as well as utilization. Before treatment and recycling, determination of physicochemical parameter is an important mechanism. Many different types of techniques are introduced and modified for the purpose, but depend upon the water quality parameters. The main aim of this study is to determine the physicochemical characteristics of sugar industry waste water by the standard method and minimize the fresh water consumption in sugar industry by water pinch methodology.

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“…Methylene blue (MB) has a pK value of 3.8 with the cationic properties of the dye and (Kimet al 2013).The H+ ions combine with the-ve charged adsorbent surface (oxides of aluminum, calcium, silicon, iron, etc.) and neutralize them (Devi et al, 2008)and thereby reduce the hindrance to the diffusion of organic molecules. The lower adsorption at higher pH might be possible due to the presence of OH-ions.…”

Section: Factors Affecting the Adsorption Effect Of Phmentioning

confidence: 99%

Treatment of pulp and paper mill effluent using low cost adsorbents: An overview

Kakkar

Malik

Gupta

2018

JANS

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In the present review, the suitability of adsorption process using low cost adsorbent for the treatment of pulp and paper mill effluent has been discussed. It is clear that adsorption processes are appropriate for the removal of recalcitrant compounds such as surfactants and pesticides, among others biodegradable or non-biodegradable compound present in pulp and paper mills effluents. The importance of the adsorption is to improvement of the removal of various physico-chemical (biological oxygen demand (BOD), chemical oxygen demand (COD), colour, suspended solids, lignin), heavy metals (Cu, Cr, Fe, Zn, Ni and Mn etc) organochlorine compounds, all recalcitrant pollutant, reduce toxicity, enhance colour removal by using different cost effective adsorbents. The effective use of the different adsorbents developed from different adsorbent media such as activated carbon, agriculture by product and industrial wastes and sludge as adsorbents for the removal of different pollutants from the various processes and operations of pulp and paper mill as potential alternatives to different treatment process and received widespread attention. Adsorption necessity is a novel treatment option to improve the efficiency of removal within the discharge limits of wastewaters into the receiving bodies without causing any damage of the environment. However, still there is a need to find out the practical usefulness of such low cost adsorbent at industrial scale with the special reference to metals.

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COD and BOD reduction from coffee processing wastewater using Avacado peel carbon

Cited by 107 publications

References 11 publications

Availability and Physical Properties of Residues From Major Agricultural Crops for Energy Conversion Through Thermochemical Processes

Availability and Physical Properties of Residues From Major Agricultural Crops for Energy Conversion Through Thermochemical Processes

Quality and management of wastewater in sugar industry

Treatment of pulp and paper mill effluent using low cost adsorbents: An overview

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