Matches in SemOpenAlex for { <https://semopenalex.org/work/W43371145> ?p ?o ?g. }
Showing items 1 to 68 of
68
with 100 items per page.
- W43371145 endingPage "899" @default.
- W43371145 startingPage "893" @default.
- W43371145 abstract "Wastewater generated by a chemical manufacturing facility required a significant reduction in the bis(2‐ethylhexyl) phthalate, di‐ n ‐octyl phthalate, and di‐ n ‐butyl phthalate ester concentration before discharge to a publicly owned treatment works (POTW). These three phthalate esters along with other esters and alcohols make up a dispersed phase in the wastewater that has lower density than water. Centrifugation was evaluated as a pretreatment process for the removal of the phthalate esters to within the effluent limits set by the POTW. The wastewater was treated by a fun‐scale commercial centrifuge at different operating conditions (effluent back pressure and flow rate) to determine the optimum conditions for phthalate ester removal. The results of this study suggest that the degree of phthalate esters removal is independent of wastewater flow rate and centrifuge effluent back pressure but depends solely on the stability of the phthalate ester emulsion that appears to be directly related to the concentration of emulsifying agent (sodium monoester salts) in the wastewater. Centrifugation provided better phthalate ester separation from the wastewater than gravity separation alone; however, the periodic occurrence of heavily emulsified phthalate esters in the wastewater necessitates the use of an equalization tank downstream of the centrifuge to consistently meet the effluent limit of 5.0 mg/L of the three phthalate esters. In addition to the wastewater effluent, the centrifuge produces a light‐phase effluent and a sludge effluent. The light‐phase effluent contains esters, alcohol, and water and can be recycled back to the ester facility for reprocessing into salable product. The sludge effluent contains a dilute concentration of solids with a significant amount of adsorbed phthalate esters. The phthalate esters can be separated from the solids into an oily layer under acidic conditions. The oily layer can then be removed by reprocessing the acidified solids stream in the centrifuge, thereby enabling the disposal of the solids with the treated wastewater. This integrated waste management process would eliminate the need for additional solids processing equipment." @default.
- W43371145 created "2016-06-24" @default.
- W43371145 creator A5006561245 @default.
- W43371145 creator A5040814749 @default.
- W43371145 date "1996-07-01" @default.
- W43371145 modified "2023-09-27" @default.
- W43371145 title "Use of centrifuge for pretreatment of combined wastewaters from a plasticizer manufacturing facility" @default.
- W43371145 cites W1569685525 @default.
- W43371145 cites W1593964328 @default.
- W43371145 cites W1969724770 @default.
- W43371145 cites W2746337045 @default.
- W43371145 doi "https://doi.org/10.2175/106143096x127901" @default.
- W43371145 hasPublicationYear "1996" @default.
- W43371145 type Work @default.
- W43371145 sameAs 43371145 @default.
- W43371145 citedByCount "6" @default.
- W43371145 crossrefType "journal-article" @default.
- W43371145 hasAuthorship W43371145A5006561245 @default.
- W43371145 hasAuthorship W43371145A5040814749 @default.
- W43371145 hasConcept C121332964 @default.
- W43371145 hasConcept C127413603 @default.
- W43371145 hasConcept C147455438 @default.
- W43371145 hasConcept C178790620 @default.
- W43371145 hasConcept C185544564 @default.
- W43371145 hasConcept C185592680 @default.
- W43371145 hasConcept C2779643248 @default.
- W43371145 hasConcept C2780657338 @default.
- W43371145 hasConcept C2781005124 @default.
- W43371145 hasConcept C43617362 @default.
- W43371145 hasConcept C528095902 @default.
- W43371145 hasConcept C548081761 @default.
- W43371145 hasConcept C58968531 @default.
- W43371145 hasConcept C94061648 @default.
- W43371145 hasConceptScore W43371145C121332964 @default.
- W43371145 hasConceptScore W43371145C127413603 @default.
- W43371145 hasConceptScore W43371145C147455438 @default.
- W43371145 hasConceptScore W43371145C178790620 @default.
- W43371145 hasConceptScore W43371145C185544564 @default.
- W43371145 hasConceptScore W43371145C185592680 @default.
- W43371145 hasConceptScore W43371145C2779643248 @default.
- W43371145 hasConceptScore W43371145C2780657338 @default.
- W43371145 hasConceptScore W43371145C2781005124 @default.
- W43371145 hasConceptScore W43371145C43617362 @default.
- W43371145 hasConceptScore W43371145C528095902 @default.
- W43371145 hasConceptScore W43371145C548081761 @default.
- W43371145 hasConceptScore W43371145C58968531 @default.
- W43371145 hasConceptScore W43371145C94061648 @default.
- W43371145 hasIssue "5" @default.
- W43371145 hasLocation W433711451 @default.
- W43371145 hasOpenAccess W43371145 @default.
- W43371145 hasPrimaryLocation W433711451 @default.
- W43371145 hasRelatedWork W1986779053 @default.
- W43371145 hasRelatedWork W2016753022 @default.
- W43371145 hasRelatedWork W2070464377 @default.
- W43371145 hasRelatedWork W2185601226 @default.
- W43371145 hasRelatedWork W2333056839 @default.
- W43371145 hasRelatedWork W2385716525 @default.
- W43371145 hasRelatedWork W2473689154 @default.
- W43371145 hasRelatedWork W2970875686 @default.
- W43371145 hasRelatedWork W2989986756 @default.
- W43371145 hasRelatedWork W3003181750 @default.
- W43371145 hasVolume "68" @default.
- W43371145 isParatext "false" @default.
- W43371145 isRetracted "false" @default.
- W43371145 magId "43371145" @default.
- W43371145 workType "article" @default.