Treatment of tapioca starch wastewater by a novel combination of physical and biological processes

Fettig, Joachim; Pick, Volker; Austermann-Haun, Ute; Blumberg, Michael; Phuoc, Nguyen Van

doi:10.2166/wst.2013.354

Cited by 12 publications

(6 citation statements)

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“…The treatment set-up consists of five interconnected chambers (raw effluent feed tank, sedimentation chamber I, bio-filtration, aeration and sedimentation chamber II) designed as a plug vertical flow system with a dimension of 1.10 × 0.4 × 0.51 m and a total design capacity of 1.44 m 3 /day. The pre-treatment sedimentation chamber was incorporated to reduce the total suspended solids (TSS) which makes up about 25% the COD prior to biological treatment (Fettig et al, 2013). The unit was constructed with 4 mm thick clear acrylic Perspex sheet.…”

Section: Methodsmentioning

confidence: 99%

Degrading cassava mill effluent using aerated sequencing batch reactor with palm kernel shell as medium

Lawal

Ogedengbe

Adetifa

et al. 2019

J.Degrade.Min.Land Manage.

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Local cassava agro-processing industries in Nigeria generate toxic organic effluent with negative environmental impact if disposed without adequate treatment. This study examines the performance of a lab-scale aerated sequencing batch reactor (SBR) in degrading cassava mill effluent using palm kernel (Elaeis guineensis) shell (PKS) as biofilter media. Wastewater samples were collected before and after flowing through each compartment at hydraulic retention times of 3, 5 and 7 hours. Continuous aeration and nature-based degradation of the effluent recorded overall removal efficiencies of 73.5% (Hydrogen cyanide), 70.59% (BOD), 69.18% (COD), 29.93% (Turbidity), 4.92% (Sodium), 25% (Magnesium) and 14.32% (Calcium) respectively. Effluent electrical conductivity (EC) slightly increased by 7.84%. The Sodium Adsorption Ratio (SAR) of the treated wastewater ranged from 6.9 to 7.3 while the final pH ranged from 4.5 to 4.6. The values of EC, BOD and COD were significantly different (P<0.05) along the treatment sequence, confirming the effectiveness of the chambers in reducing these pollutants. Despite achieving high removal efficiencies, the final values of most parameters still fall short of the local permissible limit signifying operational limitations and the need to optimize the system to reduce key contaminants to safe disposal limits.

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Section: Methodsmentioning

confidence: 99%

Degrading cassava mill effluent using aerated sequencing batch reactor with palm kernel shell as medium

Lawal

Ogedengbe

Adetifa

et al. 2019

J.Degrade.Min.Land Manage.

View full text Add to dashboard Cite

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“…Organic matter (COD >98%), nitrogen (Kjeldahl-N >90%), and cyanide (total cyanide >99%) were removed efficiently under stable operating conditions. However, the removal efficiency for phosphorus is low (50%) (Fettig et al, 2013).…”

Section: Starch Wastewatermentioning

confidence: 99%

Treatment of industrial effluents in constructed wetlands: Challenges, operational strategies and overall performance

Wallace

Brix

et al. 2015

Environmental Pollution

181

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“…Among the numerous anaerobic bioreactors, the expanded granular sludge bed (EGSB) reactor has attracted more attention in recent years due to its improved performance and economic efficiency during the anaerobic digestion of municipal wastewater [9,10]. However, unstable performance and a long startup period are still challenging problems for the EGSB reactor [11].…”

Section: Introductionmentioning

confidence: 99%

Divergence of Granular Sludges and Microbial Communities in Two Types of Anaerobic Reactors Treating Different Wastewaters

Qin

Gao

et al. 2019

Journal of Microbiology and Biotechnology

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An advanced anaerobic expanded granular sludge bed (AnaEG) and an internal circulation (IC) reactor, which were adopted to treat starch processing wastewater (SPW) and ethanol processing wastewater (EPW), were comprehensively analyzed to determine the key factors that affected the granules and microbial communities in the bioreactors. The granule size of 900 µm in the AnaEG reactor was smaller than that in the IC reactor, and the internal and external morphological structures of the granular sludge were also significantly different between the two types of reactors. The biodiversity, which was higher in the AnaEG reactor, was mainly affected by reactor type. However, the specific microbial community structure was determined by the type of wastewater. Furthermore, the dominant methanogens of EPW were mainly Methanosaeta and Methanobacterium, but only Methanosaeta was a major constituent in SPW. Compared with the IC reactor, characteristics common to the AnaEG reactor were smaller granules, higher biodiversity and larger proportion of unknown species. The comparison of characteristics between these two reactors not only aids in understanding the novel AnaEG reactor type, but also elucidates the effects of reactor type and wastewater type on the microbial community and sludge structure. This information would be helpful in the application of the novel AnaEG reactor.

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Treatment of tapioca starch wastewater by a novel combination of physical and biological processes

Cited by 12 publications

References 0 publications

Degrading cassava mill effluent using aerated sequencing batch reactor with palm kernel shell as medium

Degrading cassava mill effluent using aerated sequencing batch reactor with palm kernel shell as medium

Treatment of industrial effluents in constructed wetlands: Challenges, operational strategies and overall performance

Divergence of Granular Sludges and Microbial Communities in Two Types of Anaerobic Reactors Treating Different Wastewaters

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