ArticleEnvironmental science and pollution research international2017
Sewage sludge treatment in a thermophilic membrane reactor (TMR): factors affecting foam formation.
Article in Environmental science and pollution research international, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Evaluation of foaming potential for water treatment: limits and developments.Environmental science and pollution research international · 2020Article
- Protein extraction and sludge dewatering performance of ultrasound-assisted enzymatic hydrolysis of excess sludge.Environmental science and pollution research international · 2020Article
- Treatment of aqueous wastes by means of Thermophilic Aerobic Membrane Reactor (TAMR) and nanofiltration (NF): process auditing of a full-scale plant.Environmental monitoring and assessment · 2019Article
- Recent Progresses in Application of Membrane Bioreactors in Production of Biohydrogen.Membranes · 2019Review
- Investigation of foaming causes in three mesophilic food waste digesters: reactor performance and microbial analysis.Scientific reports · 2017Article
Corrections and comments
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Authors and funding
4 authors.
Funding
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Abstract
Foam formation in the excess sludge treatment facilities of biological wastewater treatment plants (WWTPs) may represent a critical issue as it could lead to several operative problems and reduce the overall plant performance. This trouble also affects a novel technology recently proposed for sludge minimization, the thermophilic membrane reactor (TMR), operating with alternate aeration/non-aeration cycles. This technology, which has proven to be extremely resilient and suitable for treating industrial wastewater of different nature, demonstrated a high potential also as a solution for integrating existing WWTPs, aiming at the "zero sludge production." In this work, an experimental study was conducted with a TMR pilot plant (fed daily with thickened sewage sludge) by adjusting the duration of aeration/non-aeration alternate cycles. Extracellular polymeric substance (EPS) concentration (and its soluble and bound fractions) has been monitored along with foaming power indices. The results highlight that foaming can be correlated to the presence of soluble protein fraction of EPS. Moreover, EPS production seems to be reduced by increasing the duration of the non-aeration cycles: optimal operating conditions resulted 2 h of aeration followed by 6 h of non-aeration. These conditions allow to obtain an EPS concentration of 500 mg L
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