Wastewater Treatment Using Combination of MBR Equipped With Non-Woven Fabric Filter and Oyster-Zeolite Column

Jung, Yoo Jin; Koh, Hyun Woong; Shin, Won Tae; Sung, Nak Chang

doi:10.4491/eer.2005.10.5.247

Cited by 12 publications

(2 citation statements)

References 15 publications

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“…Glucose constitutes a standard carbon supplement that has been used in many studies. [30][31][32][33] The influent feed had approximately 750 mg COD L −1 (chemical oxygen demand, COD) and 85 mg N L −1 of total nitrogen (TN).…”

Section: Methodsmentioning

confidence: 99%

“…Glucose was used as an organic carbon supplement for the synthetic wastewater, since it does not degrade rapidly in the storage tank, prior to the feeding of the synthetic wastewater into the bioreactors. Glucose constitutes a standard carbon supplement that has been used in many studies . The influent feed had approximately 750 mg COD L −1 (chemical oxygen demand, COD) and 85 mg N L −1 of total nitrogen (TN).…”

Section: Methodsmentioning

confidence: 99%

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Biological cyanide removal from industrial wastewater by applying membrane bioreactors

Lintzos

Koumaki

Mendrinou

et al. 2020

J of Chemical Tech & Biotech

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BACKGROUND: This work investigates whether the membrane bioreactor (MBR) process can effectively treat industrial wastewater containing high cyanide concentrations; cyanide may inhibit the biological processes, rendering such processes inadequate. In this work, the changes in process performance and microbial activity under gradually increased free cyanide (CN −) concentrations (1,3 and 10 mgCN − L −1) were investigated in two pilot-scale MBR configurations. The MBR systems consisted of two parallel operating lines: a single aerobic (MBR 1) and an aerobic/anoxic (MBR 2). RESULTS: Cyanide removal was not adversely affected by the increase in cyanide concentration since removals up to 90% were obtained. Despite the inhibition that occurred, ammonia and organic carbon removal efficiency did not decrease, even at the highest cyanide concentration of 10 mgCN − L −1 , and it remained high (>95%) in both systems. Nitrification (sAUR) was inhibited by 35%, 54%, and 64% in MBR 1 and by 16%, 25%, and 36% in MBR 2 , with the addition of 1, 3, and 10 mgCN − L −1 , respectively. The aerobic respiration (sOUR) was inhibited considerably less with an inhibition of 19%, 37%, and 45% in MBR 1 and 9%, 16%, and 21% in MBR 2. The biomass maintained under both aerobic and anoxic conditions (MBR 2) was more tolerant to cyanide compared to the biomass that was acclimated under only aerobic conditions (MBR 1). CONCLUSION: At high cyanide load conditions, the MBR systems showed satisfactory removal of both cyanide and conventional pollutants despite the inhibition observed, indicating that MBR systems can successfully respond to the treatment of industrial wastewater that is heavily contaminated with cyanide.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Biological cyanide removal from industrial wastewater by applying membrane bioreactors

Lintzos

Koumaki

Mendrinou

et al. 2020

J of Chemical Tech & Biotech

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Impact of organic matter constituents on phosphorus recovery from CPR sludges

Alnimer,

Smith,

Parker

2024

Water Environment Research

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This study evaluated the influence of organic matter (OM) constituents on the potential for recovery of P from wastewaters when FeCl3 treatment is employed for P removal. The presence of OM constituents did not influence P release from Fe‐P sludges when alkaline and ascorbic acid treatments were employed. However, the overall recovery of P from wastewater was impacted by the presence of selected OM constituents through the reduction of P uptake during coagulation. The presence of protein and humic matter showed remarkably low P removal values (3.0 ± 0.4% and 23 ± 1% respectively) when compared to an inorganic control recipe (62 ± 2%). Elevated soluble Fe (SFe) residuals in the presence of proteins (87 ± 5%) and humics (51 ± 1%) indicated interactions between Fe(III) cations and negatively charged functional groups like hydroxyl, carboxyl, and phenolic groups available in these organics. Significant negative correlations between P removal and residual SFe were observed suggesting Fe solubilization by OM constituents was the mechanism responsible for reduced P removal. The findings of this study identify, for the first time, the impact of OM constituents on overall P recovery when Fe(III) salts are employed and provide insights into recoveries that can be expected when Fe is added to primary, secondary treated, and industrial wastewaters.Practitioner Points Low P removal values were observed for protein and humic dominated wastewater recipes. Iron(III) solubilization counted for P removal reduction by proteins and humic acids. There is no effect of OM on P release from Fe‐P sludge at pH 10 and ascorbic acid treatments. OM and agent employed to release P from sludges affected overall recovery of P.

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Construction of ASMC by Dielectrophoresis Using Wirecloth Electrode for the Treatment of Wastewater

Abidin

Wai

Haffifudin

et al. 2013

Developments in Sustainable Chemical and Bioprocess Technology

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Wastewater Treatment Using Combination of MBR Equipped With Non-Woven Fabric Filter and Oyster-Zeolite Column

Cited by 12 publications

References 15 publications

Biological cyanide removal from industrial wastewater by applying membrane bioreactors

Biological cyanide removal from industrial wastewater by applying membrane bioreactors

Impact of organic matter constituents on phosphorus recovery from CPR sludges

Construction of ASMC by Dielectrophoresis Using Wirecloth Electrode for the Treatment of Wastewater

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