Treatment of wastewater from sugarcane process industry by electrochemical and chemical process: Aluminum (metal and salt)

Sahu, Omprakash; Rao, Dubasi Govardhana; Gopal, Richa; Tiwari, Anurag; Pal, Dharm

doi:10.1016/j.jwpe.2017.03.005

Cited by 47 publications

(9 citation statements)

References 26 publications

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“…The differences in the availability and activity of the microorganisms indicate that there is a higher probability that the same raw materials and techniques used to produce the WRW may not produce common species as the ones isolated in this study. [76][77][78][79][80][81][82][83][84]. The fermented WRW nutrient concentrations are generally within the range of the reported values obtained in the domestic and municipal wastewater and palm oil mill effluent (POME).…”

Section: Identification and Characterization Of The Bacterial Strainssupporting

confidence: 74%

Chemical and Microbial Characterization of Washed Rice Water Waste to Assess Its Potential as Plant Fertilizer and for Increasing Soil Health

et al. 2021

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The wastewater from washed rice water (WRW) is often recommended as a source of plant nutrients in most Asian countries, even though most current research on WRW lack scientific rigor, particularly on the effects of rice washing intensity, volumetric water-to-rice ratio (W:R), and condition of the WRW before plant application. This research was thus carried out: (1) to determine how various rice washing intensities, fermentation periods (FP), and W:R would affect the nutrient content in WRW, and (2) to isolate, identify, and characterize the bacterial community from fermented WRW. The WRW was prepared at several rice washing intensities (50, 80, and 100 rpm), FP (0, 3, 6, and 9 days), and W:R (1:1, 3:1, and 6:1). The concentrations of all elements (except P, Mg, and Zn) and available N forms increased with increasing FP and W:R. Beneficial N-fixing and P- and K-solubilizing bacteria were additionally detected in WRW, which helped to increase the concentrations of these elements. Monovalent nutrients NH4+-N, NO3−-N, and K are soluble in water. Thus, they were easily leached out of the rice grains and why their concentrations increased with W:R. The bacteria population in WRW increased until 3 days of fermentation, then declined, possibly because there was an insufficient C content in WRW to be a source of energy for bacteria to support their prolonged growth. While C levels in WRW declined over time, total N levels increased then decreased after 3 days, where the latter was most possibly due to the denitrification and ammonification process, which had led to the increase in NH4+-N and NO3−-N. The optimum FP and W:R for high nutrient concentrations and bacterial population were found to be 3 to 9 days and 3:1 to 6:1, respectively. WRW contained nutrients and beneficial bacterial species to support plant growth.

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Section: Identification and Characterization Of The Bacterial Strainssupporting

confidence: 74%

Chemical and Microbial Characterization of Washed Rice Water Waste to Assess Its Potential as Plant Fertilizer and for Increasing Soil Health

et al. 2021

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“…The resistance of filter medium and filter cake was calculated by using Eq. (2) [32,33]: where time difference denoted with (Δt), volume collected in certain time denoted with (ΔV), concentration of solid in slurry denoted with ( C), volume of filtrated liquid in time differences is denoted with (V), kinematic viscosity of filtered liquid is denoted with (µ), specific resistance (α) pressure difference in liquid is denoted with (ΔP = ρgh), area (A) and resistance (R m ) of filter medium were used. After determining the value of filtrate with respect to time, Table 5.…”

Section: Settlingmentioning

confidence: 99%

Deduction of Organic and Inorganic Pollutant from Sugarcane Processing Plant Effluent by Thermal-oxidation and Electro-oxidation Processes in Batch Experiment

Sahu

2020

Chemistry Africa

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Sugarcane industries have a major contribution to the rural development of country, including pollution level to the environment. Associate with all the waste from the sugarcane industry, wastewater is a key issue to manage. Throughout the sugarcane processing season, large quantities of water consumed and discharge a large amount of wastewater. The investigation has been done to bring wastewater up to recycling limit made by pollution board. The objective of this research work is to reduced the pollutants from sugar industry effluent with thermal oxidation, electrooxidation, and combined with both treatment process. The result shows 68.5% COD and 71.2% color with thermal, 82.5% COD, and 86.5% color with electrocoagulation and 98% COD and 99.2% color reduction with a combined treatment of most appropriate conditions. In settling and filtration study 80% of efficiency was attained with the combined study. The sludge containing a lesser amount of inorganic and treated can be reutilized.

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“…Consequently, this results in higher removal efficiency of organics. Bubble size decreases, while bubble generation rate increases with current density, which results in higher removal efficiency of organics via H 2 flotation, in addition to the effect of coagulation [50,53].…”

Section: Effect Of Dosing (Current Density and Mass Loading)mentioning

confidence: 99%

Suitability of aluminum material on sugar industry wastewater with chemical and electrochemical treatment processes

Sahu

2019

Int J Ind Chem

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Aluminum is a valuable material, which can be used for water and wastewater treatment. It exists in metal as well as in salt form. The efficiency of water and wastewater treatment depends upon the technology applied to treat. Sugarcane industry is coming under those industries which have a large amount of freshwater and release large amount of effluent. The goal of this research work is to study the behavior of aluminum metal and salt for the treatment of sugar industry wastewater on chemical oxidation and electrochemical oxidation. The effect of pH, dosing, temperature and catalysis on metal and salt has been also studied with both treatment methods. The results show that maximum 90% of chemical oxygen demand and 94% of color removal can be achieved with an aluminum electrode (electrocoagulation) at optimum conditions, pH 7, current density 178 A/m 2 , electrode distance 20 mm, and salt solution 0.5 M NaCl. In the same way, 81% chemical oxygen demand and 85% color removal were achieved with alum for the 0.5 M lime solution, at 50 mM mass loading, 21 °C operating temperature and optimum pH of 7, respectively. The sludge generated after treatment was also analyzed with settling filtration, thermal, FTIR and SEM.

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Treatment of wastewater from sugarcane process industry by electrochemical and chemical process: Aluminum (metal and salt)

Cited by 47 publications

References 26 publications

Chemical and Microbial Characterization of Washed Rice Water Waste to Assess Its Potential as Plant Fertilizer and for Increasing Soil Health

Chemical and Microbial Characterization of Washed Rice Water Waste to Assess Its Potential as Plant Fertilizer and for Increasing Soil Health

Deduction of Organic and Inorganic Pollutant from Sugarcane Processing Plant Effluent by Thermal-oxidation and Electro-oxidation Processes in Batch Experiment

Suitability of aluminum material on sugar industry wastewater with chemical and electrochemical treatment processes

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