Geotextile Filtration Performance for Lagoon Sludges and Liquid Animal Manures Dewatering

Cantrell, Keri B.; Chastain, John P.; Moore, Kathy

doi:10.13031/2013.24526

Cited by 11 publications

(8 citation statements)

References 15 publications

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“…We also speculate the burlap fabric could have swelled as it became saturated with effluent water, resulting in a shrinking of the pore opening during filling and improved solids retention. Cantrell et al (2008) discovered that the pore opening size was not as important as the filter cake that was created inside the textile bag, which enhances solids and nutrient retention on proceeding pumping events.…”

Section: Resultsmentioning

confidence: 99%

“…Geotextile technology allows a more flexible approach toward management of aquaculture effluent after discharge from the production system. A geotextile bag is constructed from a high‐strength woven polypropylene fabric and has been used to dewater animal wastes on dairy (Mukhtar et al 2007; Cantrell et al 2008; Worley et al 2008), swine (Baker et al 2002; Cantrell et al 2008), and aquaculture facilities (Sharrer et al 2009). Total suspended solids (TSS) are retained within the bag while the slurry dewaters allowing a filtrate low in TSS concentration to exit.…”

mentioning

confidence: 99%

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Evaluation of Two Textiles with or without Polymer Addition for Dewatering Effluent from an Intensive Biofloc Production System

Danaher

Shultz

Rakocy

2011

J World Aquaculture Soc

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Intensive, recirculating aquaculture systems create concentrated wastes high in solid content. Geotextile has successfully dewatered aquaculture effluent; however, burlap, made from natural plant fiber, may provide similar filtering capabilities at a lower cost. The trial was designed as a 2 × 2 factorial to evaluate burlap bags and geotextile bags with or without polymer addition for dewatering Nile tilapia, Oreochromis niloticus, effluent from an intensive biofloc production system. There were no significant interactions (P > 0.05) between the main effects on the removal efficiency of total suspended solids (TSS) concentration. There were no significant differences (P > 0.05) in the main effect of textile; however, there were significant differences (P≤ 0.001) in the main effect of polymer on the removal efficiency of TSS concentration from effluent. Overall, TSS removal efficiency in textile‐only treatments was 81%, whereas textile treatments in combination with polymer removed 98%. Partial budget analysis indicated that the cost per kilogram of solids (dry weight) removed from untreated effluent was US$1.52, 1.51, 0.16, and 0.14 for the geotextile with polymer (GP), geotextile without polymer (GNP), burlap with polymer (BP), and burlap without polymer (BNP) treatments, respectively. The BP could provide an effective treatment process for removing TSS in discharged effluent.

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Section: Resultsmentioning

confidence: 99%

mentioning

confidence: 99%

Evaluation of Two Textiles with or without Polymer Addition for Dewatering Effluent from an Intensive Biofloc Production System

Danaher

Shultz

Rakocy

2011

J World Aquaculture Soc

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“…Duplicate gravity filtration tests were carried out through 250-, 400-, and 600-µm mesh monofilament nylon filters (NMO, Krystil Klear Filtration, IN). The selected mesh size of the filters were in the range of opening sizes in geotextiles tubes used for dewatering manure and sludges (Szogi et al, 2006;Cantrell et al, 2008;Worley et al, 2008). Total suspended solids (TSS) were determined in the filtrates, and their corresponding moisture content.…”

Section: Dewatering Of Washed Solids (Experiments 2)mentioning

confidence: 99%

Economic Recovery of Calcium Phosphates From Swine Lagoon Sludge Using Quick Wash Process and Geotextile Filtration

Szögi¹,

Vanotti²,

Shumaker³

2018

Front. Sustain. Food Syst.

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To maintain the waste treatment capacity of anaerobic swine lagoons, excessive accumulation of sludge in the bottom of the lagoon is traditionally removed by dredging and pumping followed by dewatering prior to land application. A widespread and low-cost method of dewatering this lagoon sludge in U.S. farms is the use of geotextile bag filtration. Because of typically high phosphorus (P) contents in lagoon sludge, the dewatered sludge is eventually hauled to distant fields to reduce the environmental risk of excess P in land nearby the lagoon. The inclusion of a P recovery approach, called Quick Wash (QW), along with the geotextile bag technology could eliminate or reduce hauling costs of dewatered sludge and produce a valuable P product for use as fertilizer. The QW process uses a novel combination of acid, base, and organic polyelectrolytes to selectively extract and recover P from manure solids. The objective of this study was to evaluate the potential advantage and technical feasibility of combining the QW process and geotextile dewatering in a system to extract and recover P from lagoon sludge. Laboratory tests results showed that the amount of recoverable P from lagoon sludge depends on the pH level obtained by acidification. The highest release of P in solution, 83% of total initial P, was obtained when the lagoon sludge was acidified to pH 3. The amount of P recovered as a precipitate with lime addition at pH 10 was about 79% of the initial total P in the sludge. A mass flow balance confirmed that about 20% of the total P remained in the dewatered sludge solids. The effluent contained extremely low soluble P concentrations. The calcium phosphate product was identified as amorphous calcium phosphate (ACP) with very low heavy metal content. The recovered ACP had P grades (33.2-35.5% P 2 O 5 ), higher than rock phosphate, with the advantage that there is no need for additional chemical processing for its use as fertilizer. Results of this study support the technical feasibility of using the QW process in combination with geotextile bag filtration for the economic recovery of P from anaerobic swine lagoons.

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“…Geotubes can have large-diameters that can withstand high pressures in the filling stage and whose surface porosity permits drainage of the water contained in the sludge. After sludge dewatering, dried sludge can be directly disposed or used [28,29].…”

Section: Sludge Management Alternativesmentioning

confidence: 99%

Waste strategies for managing excessive sludge in water resources

Veiga¹,

Silva²

2018

Int. J. SDP

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Brazil has been planning to universalize water-related services for a long time. Due to budget constraints, only 40% of overall domestic sewage receive proper treatment before final discharge. Even though, direct sewage discharges represent major threats to Water Resource Managers, it creates challenge to Waste Managers. This study analyzed waste strategies for managing excessive lake sludge. In the selected water resource, raw sewage was discharged directly for a lengthy period. Massive portion of biosolids have accumulated on the bottom of the lake, resulting in considerable sludge layer. A preliminary sludge dredging attempt resulted in algae bloom, steady pollution, eutrophication, and fish death. However, the main expected hazard is the amount of solid waste generated during the sludge removal process. The preferred waste strategy by local officials was disposing the sludge in an open dumping area. Other potential sludge management strategies were: composting; geotextile bags; brick industry (recycling); incinerating; open-dump and landfilling. The results of sludge characteristics indicated no hazardous compounds and a sizable percentage of inorganic matter (85%). Open dump disposal was assumed to be illegal. The landfill solution did not enable any energy or material recovery and should be considered only as the least preferred solution. The geotextile and incineration alternatives indicated to be costly. Composting was considered ineffective due to high inorganic ratio and logistic costs. The low logistics costs and the sludge characteristics makes brick manufacturing comparatively efficient. Therefore, this study proposed as the optimal waste strategy, recycling the sludge as raw material in the local brick manufacturing facility. However, due to severe public budget constraints, the implementation of any sludge management strategy (dredging and disposal) is still contingent on availability of financial resources.

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Geotextile Filtration Performance for Lagoon Sludges and Liquid Animal Manures Dewatering

Abstract: ABSTRACT. Maintenance and control of liquid levels in anaerobic lagoons

Cited by 11 publications

References 15 publications

Evaluation of Two Textiles with or without Polymer Addition for Dewatering Effluent from an Intensive Biofloc Production System

Evaluation of Two Textiles with or without Polymer Addition for Dewatering Effluent from an Intensive Biofloc Production System

Economic Recovery of Calcium Phosphates From Swine Lagoon Sludge Using Quick Wash Process and Geotextile Filtration

Waste strategies for managing excessive sludge in water resources

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