Pig manure treatment by organic bed biofiltration

Buelna, Gerardo; Dubé, Rino; Turgeon, Nicolas

doi:10.1016/j.desal.2007.11.049

Cited by 39 publications

(17 citation statements)

References 5 publications

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“…However, their trickling filter operated with a hydraulic load of 0.017 m 3 m −2 day −1 , which was much lower than the 4033 m 3 m −2 day −1 in our study. Similarly, Buelna et al [29] obtained efficiencies in the removal of organic matter of up to 95% in a trickling filter designed for the treatment of 12 m 3 day −1 of pig wastewater with 10,000 to 20,000 mg L −1 BOD 5 . According to the volume of the filter and the influent flow, the retention time was much longer in that study than in ours.…”

Section: Discussionmentioning

confidence: 99%

“…Buelna et al [29] reported an efficiency of phosphorus removal of 71% from an influent with a concentration of 180 mg L −1 and a very low hydraulic load (0.017 m −3 m −2 day −1 ). Garzon-Zùñiga et al [11] evaluated various aeration rates, and observed effluents with dissolved oxygen contents from 7 to 8.5 mg L −1 , from an influent with 0.05 mg L −1 .…”

Section: Discussionmentioning

confidence: 99%

“…This study involved lower retention times and a lower nitrogen load (0.067 kg m −2 day −1 ) than those of our study (0.559 kg m −2 day −1 ). Buelna et al [29] obtained a nitrogen removal rate of 26% in the treatment of swine wastewater, with a total nitrogen load of 2300 mg L −1 , and a very low hydraulic load (0.017 m −3 m −2 day −1 ). Garzon Zuñiga et al [11] reported an efficiency of 50% in the removal of total nitrogen content in swine wastewater with 2080 mg L −1 of nitrogen and a very low hydraulic load (0.5 m −3 m −2 day −1 ).…”

Section: Discussionmentioning

confidence: 99%

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Removing Organic Matter and Nutrients from Swine Wastewater after Anaerobic–Aerobic Treatment

Terán

Orozco

Acuña

et al. 2017

Water

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Anaerobic digesters generate effluent containing about 3000 mg L −1 of organic matter in terms of chemical oxygen demand (COD). This effluent must be treated before being reused or discharged into the environment. The objective of this study was to evaluate the efficiency of a trickling filter packed with red volcanic rock for the treatment of anaerobic digester effluent with COD concentrations of around 3000 mg L −1 . The trickling filter consisted of an aluminum cylinder, 2 mm thick, 3 m high, and 1 m in diameter. To evaluate the efficiency of the treatment system, there were three experimental runs, each lasting 20 days (d). The predictor variable was the initial COD concentration, which ranged from 2002 to 3074 mg L −1 . The hydraulic retention time was 9 h. The influent flow was 2.2 L min −1 , which amounts to a hydraulic load of 4033 m 3 m −2 day −1 and an organic load of 0.006342 to 0.009738 kg m −3 day −1 of COD. Independent of the initial concentration, COD removal efficiency was very high, varying from 90 to 96%. Final effluents met all the maximum permissible limits to be used as irrigation water, as well as for its release into natural or artificial water reservoirs, stored for agricultural crop irrigation.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Removing Organic Matter and Nutrients from Swine Wastewater after Anaerobic–Aerobic Treatment

Terán

Orozco

Acuña

et al. 2017

Water

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“…Biofiltration process has various advantages compared to CAS and MBR technologies [20,21]. It is an economical, simple, and innovative solution for water and air pollution control [20,22,23].…”

Section: Introductionmentioning

confidence: 99%

“…It is an economical, simple, and innovative solution for water and air pollution control [20,22,23]. Phenolic Compounds -Natural Sources, Importance and ApplicationsPhenolic compounds removal by biofiltration was investigated by [9,24] but the involved mechanisms of this removal were not described before.…”

Section: Introductionmentioning

confidence: 99%

Phenolic Compounds Removal in Woodwaste Leachate by a Trickling Biofilter

Kamal¹,

Galvez‐Cloutier²,

Buelna³

et al. 2017

Phenolic Compounds - Natural Sources, Importance and Applications

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Woodwaste produces large volumes of leachate, which often contains high concentrations of phenolic compounds. These compounds necessitate appropriate management. Biological methods are efficient, innovative, and economic. In particular, biofiltration process has various advantages compared to CAS and MBR technologies. Two pilot filters, with and without biological activity, were designed for continuous mechanisms to follow. This study supposes that the three mechanisms of volatilization, sorption, and biodegradation are present, confirm these assumptions, and determine the contribution of each mechanism. Good efficiency was obtained in the biofilter and 97-98.2% of COD and BOD removal were observed, respectively. Excellent performances were achieved and reached 99.9% of initial concentrations removal for all the phenolic compounds.

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