Industrial wastewater as an external carbon source for optimization of nitrogen removal at the “Wschod” WWTP in Gdansk (Poland)

Swinarski, Marek; Mąkinia, Jacek; Czerwionka, Krzysztof; Chrzanowska, Marta

doi:10.2166/wst.2009.774

Cited by 13 publications

(11 citation statements)

References 10 publications

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“…The settled wastewater (without pretreatment and after coagulation-flocculation) as well as acetic acid, ethanol and by-products from a distillery were tested in three kinds of batch experiments. The results of similar experiments with other carbon sources including methanol have been described elsewhere (Swinarski et al, 2009a;Swinarski et al, 2009b).…”

Section: Introductionmentioning

confidence: 83%

“…Since March 2011 the current limit of total nitrogen (15 g N/m 3 ) will be reduced to 10 g N/m 3 . More details concerning the process configuration and recent N removal efficiencies at the "Wschod" WWTP can be found elsewhere (Swinarski et al, 2009a and2009b).…”

Section: Study Sitementioning

confidence: 99%

“…The actual MLSS and MLVSS concentrations were measured at the beginning and at the end of the test. The details of the experimental procedures of similar experiments with other carbon sources were described elsewhere (Swinarski et al, 2009a and2009b).…”

Section: Procedures Of Laboratory Experimentsmentioning

confidence: 99%

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Internal vs. External (Alternative) Carbon Sources for Denitrification and EBPR Accomplished by a Full-Scale Process Biomass

Mąkinia¹,

Drewnowski²,

Swinarski³

et al. 2009

proc water environ fed

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The efficiencies of denitrification and enhanced biological phosphorus removal (EBPR) in biological nutrient removal (BNR) activated sludge systems are strongly dependent on the availability of appropriate carbon sources. The aim of this study was to determine the immediate effects of dosing different carbon sources on the denitrification capability and EBPR interactions of a full-scale process biomass from the "Wschod" WWTP in Gdansk (Poland). The settled wastewater (without pretreatment and after coagulation-flocculation) as well as acetic acid, ethanol and by-products from a distillery were tested in three kinds of batch experiments, such as the "conventional" nitrate utilization rate (NUR) measurements, NUR measurements during anoxic P uptake and aerobic respirometric measurements. The removal of colloidal and particulate fractions by coagulation-flocculation resulted in the reduced process rates: up to 30 and 25%, respectively, for the NUR1 and NUR2 during the "conventional" NUR measurements, and up to 60% for the NUR during the anoxic PUR test. In the "conventional" batch experiments, the observed NURs with fusel oil (2.5-2.7 g N/(kg VSS·h) were higher in comparison with pure ethanol. The addition of fusel oil at the beginning of the anoxic phase (preceded by an anaerobic phase) did not appear to affect adversely the parallel P uptake rates and the observed NURs (3.5-4.3 g N/(kg VSS·h)) were comparable to the other examined carbon sources.

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Section: Introductionmentioning

confidence: 83%

Section: Study Sitementioning

confidence: 99%

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Internal vs. External (Alternative) Carbon Sources for Denitrification and EBPR Accomplished by a Full-Scale Process Biomass

Mąkinia¹,

Drewnowski²,

Swinarski³

et al. 2009

proc water environ fed

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“…Swinarski et al (2009b) investigated three different types of industrial wastewater (effluents from a distillery, brewery, and fish-pickling factory, respectively) on the denitrification capability of process biomass originating from a full-scale BNR plant in northern Poland. These three food industry effluents were characterized by a high content of easily biodegradable chemical oxygen demand (COD) (33.7%-88.5% of the total COD) and low nutrient concentrations (COD/total nitrogen (TN) ratios in the range of 15.1-80.6).…”

Section: Introductionmentioning

confidence: 99%

Cassava stillage and its anaerobic fermentation liquid as external carbon sources in biological nutrient removal

Xie

et al. 2015

J. Zhejiang Univ. Sci. B

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Abstract:The aim of this study was to investigate the effects of one kind of food industry effluent, cassava stillage and its anaerobic fermentation liquid, on biological nutrient removal (BNR) from municipal wastewater in anaerobicanoxic-aerobic sequencing batch reactors (SBRs). Experiments were carried out with cassava stillage supernatant and its anaerobic fermentation liquid, and one pure compound (sodium acetate) served as an external carbon source. Cyclic studies indicated that the cassava by-products not only affected the transformation of nitrogen, phosphorus, poly-β-hydroxyalkanoates (PHAs), and glycogen in the BNR process, but also resulted in higher removal efficiencies for phosphorus and nitrogen compared with sodium acetate. Furthermore, assays for phosphorus accumulating organisms (PAOs) and denitrifying phosphorus accumulating organisms (DPAOs) demonstrated that the proportion of DPAOs to PAOs reached 62.6% (Day 86) and 61.8% (Day 65) when using cassava stillage and its anaerobic fermentation liquid, respectively, as the external carbon source. In addition, the nitrate utilization rates (NURs) of the cassava by-products were in the range of 5.49-5.99 g N/(kg MLVSSh) (MLVSS is mixed liquor volatile suspended solids) and 6.63-6.81 g N/(kg MLVSSh), respectively. The improvement in BNR performance and the reduction in the amount of cassava stillage to be treated in-situ make cassava stillage and its anaerobic fermentation liquid attractive alternatives to sodium acetate as external carbon sources for BNR processes.

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“…Generally, methanol is the most used and well-documented carbon source [4], and was recommended by the US EPA. However, for large WWTPs, the cost for methanol can significantly increase the operating costs, not counting the fact that methanol is a valuable resource.…”

mentioning

confidence: 99%

Assess the Effects of Sucrose on Post-Anoxic Denitrification through Lab-Scaled Sequence Batch Reactors (SBRs)

Phung¹,

Phung²

2016

JESE-B

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Abstract:The aim of this study was to assess the impact of industrial-grade sucrose as external carbon source on post-anoxic denitrification. This was done through the use of lab-scaled Sequencing Batch Reactors (SBRs) modelling after a standard post-anoxic Waste Water Treatment Plant (WWTP). Each reactor holds an effective volume of approximately 4 L, with the decant volume of 2 L per cycle, a Hydraulic Retention Time (HRT) of 8 hours, Sludge Retention Time (SRT) of about 11.5 ± 0.5 days. The experiments showed that adding industrial-grade sucrose into the post-anoxic zone has a very significant improvement where the nitrate removal rate increased from 10% to 68%. The experiment also verifies that most of the Specific Denitrification Rate (SDNR) calculated from the lab-scaled SBRs lie within the range of earlier study (2.29-2.85 mgNO 3 -/gMLVSS/h), and verified the results of both this experiment and the SDNR batch tests in previous study.

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Industrial wastewater as an external carbon source for optimization of nitrogen removal at the “Wschod” WWTP in Gdansk (Poland)

Cited by 13 publications

References 10 publications

Internal vs. External (Alternative) Carbon Sources for Denitrification and EBPR Accomplished by a Full-Scale Process Biomass

Internal vs. External (Alternative) Carbon Sources for Denitrification and EBPR Accomplished by a Full-Scale Process Biomass

Cassava stillage and its anaerobic fermentation liquid as external carbon sources in biological nutrient removal

Assess the Effects of Sucrose on Post-Anoxic Denitrification through Lab-Scaled Sequence Batch Reactors (SBRs)

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