Biological Treatment by Active Sludge with High Biomass Concentration at Laboratory Scale for Mixed Inflow of Sunflower Oil and Saccharose

Cisterna, Pedro

doi:10.3390/environments4040069

Cited by 12 publications

(6 citation statements)

References 16 publications

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“…Another experiment was conducted in an activated sludge experimental plant: 400 mg/L of saccharose was added in similar concentrations to fats and oils in the influent, i.e., in a concentration range of 100 mg/L to 850 mg/L. As a result, oil biodegradation ranged from 51% to 60% [27], showing the competitive effect of the saccharose substrate.…”

Section: Mass Loading Biodegradation and Oil And Fat Removalmentioning

confidence: 99%

Comparison of Biodegradation of Fats and Oils by Activated Sludge on Experimental and Real Scales

Cisterna-Osorio

Arancibia-Ávila

2019

Water

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Fats and oils are the most common pollutants in wastewater, and are usually eliminated through physical processes in wastewater treatment plants, generating large amounts of fats and residual oils that are difficult to dispose of and handle. The degradation of fatty wastewater was studied in a real wastewater treatment plant and a laboratory scale treatment unit. The wastewater treatment plant, located in Chile, was designed for a population of 200,000 inhabitants. It includes an aerobic digester that receives fat and oils retained in a degreaser and treats the fats and oils together with biomass. The biodegradation of fats and oils was analyzed in both wastewater treatment systems. Key parameters were monitored such as the concentration of fats and oils in the influents and effluents, mass loading, and the efficiency of biodegradation. The mass loading range was similar in both wastewater treatment systems. In the experimental activated sludge plant, the biodegradation of fats and oils reached levels in the range of 64% to 75%. For the wastewater treatment plant with an aerobic digester, the levels of biodegradation of fats and oils ranged from 69% to 92%. Therefore, considering the efficiency of the elimination of fats and oils, the results indicated that physical treatment should be replaced with biological treatment so that the CO2 generated by the biodegradation will be incorporated into the carbon cycle and the mass of fats and oils in landfills will be reduced.

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Section: Mass Loading Biodegradation and Oil And Fat Removalmentioning

confidence: 99%

Comparison of Biodegradation of Fats and Oils by Activated Sludge on Experimental and Real Scales

Cisterna-Osorio

Arancibia-Ávila

2019

Water

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“…Thus, the removal efficiency value in 9 th data became the highest COD removal efficiency value during the processing cycle. The increasing in mass loading value accompanied by increasing COD removal efficiency also occurred in biological treatment research for sunflower oil from wastewater influents [18].…”

Section: 𝑀𝐿𝑅 = 𝑄 𝑥 𝑆𝑜 𝑉mentioning

confidence: 79%

COD Removal of Batik Wastewater using Microbial Immobilization System for Agricultural Purposes

Yuniati¹,

Rachmawati²,

Nurjayati³

et al. 2022

IOP Conf. Ser.: Earth Environ. Sci.

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Batik is made through a series of processes that requires large amount of water. One of these processes is dying the fabric using chemical dyes. Many batik producers in Yogyakarta dispose the wastewater straight into the river or on the ground. Since batik is recognized as UNESCO’s Intangible Cultural Heritage of Indonesia, batik industries have been grown rapidly. As a result, batik wastewater became a huge contributor to environmental pollution, especially land and water resources. In the present study, application of microorganisms (bioremediation) to remove or degrade pollutant of batik wastewater was investigated. Microorganisms of Bacillus licheniformis were immobilized in bentonite mineral. This microbial immobilized system then applied in aerobic reactor of continuous process. The concentration of Chemical Oxygen Demand (COD) was calculated as daily parameter. Although the final COD concentration still doesn’t meet the government standard, this microbial immobilization system shows promising COD removal results. The highest COD removal is 75%. This experiment is still in the early stages and further phases of the experiment are required to reach safe chemical parameters of batik wastewater for agricultural purposes as regulated by the Indonesian government.

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“…The potassium dichromate method was used to evaluate chemical oxygen demand (COD) levels. The method used is a variation of the standard method [22], and maintains the basis of it. However, the variation applied uses a significantly smaller sample and fewer reagents.…”

Section: Physicochemical Parameters and Analytical Methodsmentioning

confidence: 99%

Differential Impact of the Biodegradation Sunflower Oil, Particulate Substrate, Caused by the Presence of Saccharose, Soluble Substrate, on Activated Sludge Treatment

Cisterna-Osorio,

Moraga-Chaura,

Manrique-Suárez

et al. 2023

Water

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This research studies the biodegradation of sunflower-type vegetative oil in two proposed activated sludge systems, the first one to biologically treat an influent containing only vegetative oil and the second one to treat a mixture of vegetable oil plus saccharose. The purpose of these analyses is to evaluate the differential impact caused by the soluble substrate saccharose on the removal of vegetative oil. Vegetative oil biodegradation in both systems was studied and quantified via integral mass balance, and relevant operating parameters were monitored. This experimentation based on the mass balance estimation of biodegraded vegetative oil serves as a reference to understand the effect of soluble substrates present in mixed wastewater on oil biodegradation. Information was generated on the performance of the two activated sludge treatment systems. Both influents were pre-stirred before they entered the bench-scale activated sludge plants. The working range for sunflower oil concentration was 120 to 520 mg/L for the influent with sunflower oil and 180 to 750 mg/L for the influent with sunflower oil and saccharose. Biodegradation was in the order of 56 to 72% and 47 to 67%, respectively. The removal of sunflower oil in biodegradation and flotation was in the order of 90% in both scenarios.

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Biological Treatment by Active Sludge with High Biomass Concentration at Laboratory Scale for Mixed Inflow of Sunflower Oil and Saccharose

Cited by 12 publications

References 16 publications

Comparison of Biodegradation of Fats and Oils by Activated Sludge on Experimental and Real Scales

Comparison of Biodegradation of Fats and Oils by Activated Sludge on Experimental and Real Scales

COD Removal of Batik Wastewater using Microbial Immobilization System for Agricultural Purposes

Differential Impact of the Biodegradation Sunflower Oil, Particulate Substrate, Caused by the Presence of Saccharose, Soluble Substrate, on Activated Sludge Treatment

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