Performance Evaluation of a Biological Pre-Treatment Coupled with the Down-Flow Expanded Granular Bed Reactor (DEGBR) for Treatment of Poultry Slaughterhouse Wastewater

Dlamini, Derrick Njabuliso; Basitere, Moses; Njoya, Mahomet; Ntwampe, Seteno Karabo Obed; Kaskote, Ephraim

doi:10.3390/app11146536

Cited by 6 publications

(7 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The following operating variables were determined: applied volumetric load (AVL), feed flow (Q), hydraulic retention time (HRT), recirculation flow (Q R ), ascensional velocity (Vasc), and percentage of support medium. The effluent was filtered and screened before entering the reactor according to Dlamini et al (2021), due to its high concentration of solids such as feathers, bones, and skin pieces. The reactor operation was carried out in triplicate in each AVL to stabilize the system and was monitored daily to analyze its evolution.…”

Section: Start-up and Continuous Operationmentioning

confidence: 99%

Efficiency of an Upflow Anaerobic Filter for Poultry Effluent Treatment

Beristain-López,

Sosa-Villalobos,

Partida-Sedas

et al. 2024

agro

View full text Add to dashboard Cite

Poultry slaughterhouses discharge large quantities of effluents that can be treated biologically. The objective of this study was to evaluate the chemical oxygen demand (COD) removal efficiency of an upflow anaerobic filter (UAF) with effluents from a poultry slaughterhouse, using volcanic stone (tezontle) as a support medium. Effluent characterization was carried out in accordance with Mexican official standards and standard methods. The support medium was inoculated with activated sludge from an urban wastewater treatment plant. The filter was operated in continuous flow with applied volumetric loads (AVL) of 1, 1.5, 2, 2.5, and 3 kg COD m-3 d-1 and hydraulic retention times (HRT) of 5.8, 3.8, 2.9, 2.3, and 1.9 days. An analysis of variance (ANOVA) was performed, and significant differences were determined for each AVL using the Krustall-Wallis method. The results obtained in the gradually applied AVL were 26.1, 53.2, 40.1, 17, and 49.7 % COD removal. However, in the AVL of 2 and 2.5 kg COD m-3 d-1, there was a decrease in the removal, which is attributed to the destabilization of the system due to the increase in loads. The maximum methane production was 125 mL at an AVL of 3 kg COD m-3 d-1, with a methane yield (YCH4) of 0.082 LCH4 g-1 COD-1rem. With no increase in methane production at each AVL, the theoretical yield of 0.328 LCH4 g-1 COD-1rem. was not met. The upflow anaerobic filter demonstrated its efficiency with a poultry effluent, with maximum COD removal greater than 50 %; however, more acclimatization time is required for the formation of biofilm in the support medium, a pretreatment that removes the high organic load and allows for gradual biogas production.

show abstract

Section: Start-up and Continuous Operationmentioning

confidence: 99%

Efficiency of an Upflow Anaerobic Filter for Poultry Effluent Treatment

Beristain-López,

Sosa-Villalobos,

Partida-Sedas

et al. 2024

agro

View full text Add to dashboard Cite

show abstract

“…The distribution of the removal efficiency values was more skewed and tailed for the TSS and the COD removal, and less skewed and tailed for FOG removal; overall, the DEGBR displayed a good performance for the removal of these contaminants, which were further removed in the post-treatment stage using an MBR. With reference to the reactor limitations and rationale mentioned in Table 2, the ob served DEGBR performance displayed an improved performance with no signs of clog ging nor need for backwashing [13,14,22] With reference to the reactor limitations and rationale mentioned in Table 2 served DEGBR performance displayed an improved performance with no signs ging nor need for backwashing [13,14,22]. With reference to the reactor limitations and rationale mentioned in Table 2, the observed DEGBR performance displayed an improved performance with no signs of clogging nor need for backwashing [13,14,22].…”

Section: Degbr Treatment Performancementioning

confidence: 99%

“…With reference to the reactor limitations and rationale mentioned in Table 2, the ob served DEGBR performance displayed an improved performance with no signs of clog ging nor need for backwashing [13,14,22] With reference to the reactor limitations and rationale mentioned in Table 2 served DEGBR performance displayed an improved performance with no signs ging nor need for backwashing [13,14,22]. With reference to the reactor limitations and rationale mentioned in Table 2, the observed DEGBR performance displayed an improved performance with no signs of clogging nor need for backwashing [13,14,22].…”

Section: Degbr Treatment Performancementioning

confidence: 99%

“…As shown in Figures 1 and 2, a set-up as illustrated was used in this study for the treatment of PSW. From previous studies, the recommendations included a thorough pre-treatment step to rid the PSW of solidified FOG in order to enhance the AD reactor's performance [1,22]. From the identified gaps, this research included a performance review on a biological pre-treatment stage using a commercial product, i.e., Eco-flush TM as an additive providing active enzymes for FOG hydrolysis.…”

Section: Introductionmentioning

confidence: 99%

“…From the identified gaps, this research included a performance review on a biological pre-treatment stage using a commercial product, i.e., Eco-flush TM as an additive providing active enzymes for FOG hydrolysis. With the pre-treatment process in place, From previous studies, the recommendations included a thorough pre-treatment step to rid the PSW of solidified FOG in order to enhance the AD reactor's performance [1,22]. From the identified gaps, this research included a performance review on a biological pre-treatment stage using a commercial product, i.e., Eco-flush TM as an additive providing active enzymes for FOG hydrolysis.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Assessment of an Integrated and Sustainable Multistage System for the Treatment of Poultry Slaughterhouse Wastewater

et al. 2021

Self Cite

View full text Add to dashboard Cite

This paper assesses the performance of an integrated multistage laboratory-scale plant, for the treatment of poultry slaughterhouse wastewater (PSW). The system was comprised of an eco-flush dosed bio-physico pre-treatment unit for fats, oil, and grease (FOG) hydrolysis prior to the PSW being fed to a down-flow expanded granular bed reactor (DEGBR), coupled to a membrane bioreactor (DEGBR-MBR). The system’s configuration strategy was developed to achieve optimal PSW treatment by introducing the enzymatic pre-treatment unit for the lipid-rich influent (PSW) in order to treat FOG including odour causing constituents such as H2S known to sour anaerobic digestion (AD) such that the PSW pollutant load is alleviated prior to AD treatment. This was conducted to aid the reduction in clogging and sludge washout in the DEGBR-MBR systems and to achieve the optimum reactor and membrane system performance. A performance for the treatment of PSW after lipid reduction was conducted through a qualitative analysis by assessing the pre- and post-pre-treatment units’ chemical oxygen demand (COD), total suspended solids (TSS), and FOG concentrations across all other units and, in particular, the membrane units. Furthermore, a similar set-up and operating conditions in a comparative study was also performed. The pre-treatment unit’s biodelipidation abilities were characterised by a mean FOG removal of 80% and the TSS and COD removal reached 38 and 56%, respectively. The final acquired removal results on the DEGBR, at an OLR of ~18–45 g COD/L.d, was 87, 93, and 90% for COD, TSS, and FOG, respectively. The total removal efficiency across the pre-treatment-DEGBR-MBR units was 99% for COD, TSS, and FOG. Even at a high OLR, the pre-treatment-DEGBR-MBR train seemed a robust treatment strategy and achieved the effluent quality set requirements for effluent discharge in most countries.

show abstract

Nature-inspired pretreatment of lignocellulose – Perspective and development

Chen

Davaritouchaee

2023

Bioresource Technology

View full text Add to dashboard Cite

Performance Evaluation of a Biological Pre-Treatment Coupled with the Down-Flow Expanded Granular Bed Reactor (DEGBR) for Treatment of Poultry Slaughterhouse Wastewater

Cited by 6 publications

References 32 publications

Efficiency of an Upflow Anaerobic Filter for Poultry Effluent Treatment

Efficiency of an Upflow Anaerobic Filter for Poultry Effluent Treatment

Assessment of an Integrated and Sustainable Multistage System for the Treatment of Poultry Slaughterhouse Wastewater

Nature-inspired pretreatment of lignocellulose – Perspective and development

Contact Info

Product

Resources

About