Effect of Aeration Mode on Microbial Structure and Efficiency of Treatment of TSS-Rich Wastewater from Meat Processing

Jachimowicz, Piotr; Cydzik‐Kwiatkowska, Agnieszka; Szklarz, Patrycja

doi:10.3390/app10217414

Cited by 11 publications

(8 citation statements)

References 58 publications

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“…Cryomorphaceae , a family of bacteria in the order Flavobacteriales , were responsible for EPS production. The growth of numerous polyphosphate-accumulating organisms (PAOs) belonging to the taxa Cryomorphaceae was found to be distributed in the surface layer and inner layer of granular sludge .…”

Section: Resultsmentioning

confidence: 99%

“…The growth of numerous polyphosphate-accumulating organisms (PAOs) belonging to the taxa Cryomorphaceae was found to be distributed in the surface layer and inner layer of granular sludge. 64 Cryomorphaceae played an essential role in the carbon and energy cycle of extreme environments, and most bacteria of this family were found in locations rich in organic carbon but grew relatively slowly, with colonies taking at least 7 days to appear and grow to full size. 65 In SBR, the abundance of unclassified Xanthomonadaceae showed a positive correlation with ammonia.…”

Section: Acs Esandt Watermentioning

confidence: 99%

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Efficient Treatment and Simultaneous Energy Recovery from Cattle Wastewater by the Micro-Aerated UASB and SBR Coupled System

Xu,

Huang,

et al. 2023

ACS EST Water

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The present study introduces a coupled system comprising an upflow anaerobic sludge blanket (UASB) and a sequencing batch reactor (SBR) to treat intensive cattle farming wastewater. The results confirmed that the optimal conditions for UASB were an organic load rate of 9.98 kg-COD m–3·day–1, a C/N ratio of 22, and a hydraulic retention time (HRT) of 1.5 h. For the SBR reactor, the optimal conditions are a dissolved oxygen (DO) concentration of 6.08 mg L–1 and the S2 aeration mode. Under these optimal conditions, the study achieved anaerobic and aerobic sludge granules (0.25–0.5 and 0.5–0.75 mm) with excellent properties due to the cooperation of a functional microbial community, including Synergistetes, Thermotogae, Acidobacteria, Proteobacteria, Chloroflexi, and Hyd24–12 in UASB and Paracoccus, Proteobacteria, Chloroflexi, and Acinetobacter in SBR. This hybrid system contributed 94% of chemical oxygen demand (COD), 90% of NH4 +-N, 90% of TN, and 61% of TP. Additionally, it achieved 18% net energy recovery from the real cattle wastewater, indicating that the UASB–SBR-coupled system holds potential as an approach for treating and recovering energy from cattle wastewater.

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Section: Resultsmentioning

confidence: 99%

Section: Acs Esandt Watermentioning

confidence: 99%

Efficient Treatment and Simultaneous Energy Recovery from Cattle Wastewater by the Micro-Aerated UASB and SBR Coupled System

Xu,

Huang,

et al. 2023

ACS EST Water

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“…Для видалення із стічних вод фосфатів можуть використовуватись фізико-хімічні методи: магнітна сепарація; хімічне осадження; сорбція активованим вугіллям; іонний обмін; електрохімічні методи, наприклад, електрокоагуляція, та біоло-гічні методи в анаеробних і аеробних умовах з використанням фосфоракумулювальних мікроорганізмів (ФАМ) [1][2][3][4][5][6][7][8][9][10].…”

Section: вступunclassified

Improvement of the technology of local wastewater treatment of the meat plant

Саблій¹,

Жукова²,

Yepishova³

2022

PWSH

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An improved technology for the local treatment of industrial wastewater of a meat processing plant is proposed for the intensification of cleaning processes and an increase in the efficiency of local treatment of industrial wastewater of a meat processing plant according to the indicators: HSC, SPAR, phosphates, ammonium nitrogen, fats, and obtaining purified water in accordance with regulatory requirements at discharge into the city sewer. According to the proposed technology, industrial wastewater after the existing grease trap and concentrator is pumped to reactive flotation using an alkaline reagent and coagulant - aluminum sulfate, with the production of coagulant flakes as a result of coagulation, removal of pollutants from water and separation of phases in the form of flotation sludge and sediment and purified water with quality indicators in accordance with regulatory requirements. The flotation sludge formed during wastewater treatment is diverted to a collector and taken away, and the sediments are recommended to be dewatered on a filter press and taken away. On the basis of the performed experimental studies, it was established that when aluminum sulfate is used as a coagulant at a dose of 250-300 mg/dm3 at a pH of 7-7.5, the effects of cleaning industrial wastewater of a meat processing plant are: water - 460-670 mg/dm3; suspended substances - 90-95%, the content of suspended substances in purified water - 10-23 mg/dm3; SPAR - 88%, SPAR content in purified water - 0.43-0.08 mg/dm3; phosphates - 62-65%, phosphate content in purified water - 3.6-5.4 mg/dm3; ammonium nitrogen - 40-42%, ammonium nitrogen content in purified water - 15.3-17.0 mg/dm3. An improved technology for local treatment of industrial wastewater using coagulation and flotation methods has been developed, the implementation of which will allow obtaining high-quality purified water, the indicators of which meet the regulatory requirements for the discharge of wastewater into the drainage system of the city of Kharkiv.

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“…The treatment of wastewater in sequencing batch reactors with a high concentration of suspended solids from meat processing is the subject of a research article authored by Jachimowicz et al [5]. The main aim of their study was to explore interrelationships between the aeration mode, microbial community composition, and the efficiency of removal of nitrogen, phosphorus, organic compounds, and total suspended solids.…”

Section: Industrial Microbiologymentioning

confidence: 99%