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dc.contributor.authorGasiūnas, Valerijus-
dc.descriptionISSN 1822-3230 (ankstesnių spausdintų leidinių)-
dc.description.abstractMeat processing wastewater is heavily contaminated with phosphorus. It can be removed from wastewater by the use of flocculants. Phosphorus removal efficiency was estimated by treating wastewater with ferric sulphate flocculant, containing 11.5 percent of the active ingredient Fe3+ by weight. The research was conducted with wastewater pretreated in an aeration tank. Wastewater, containing 41.0 ± 3.5 mg l-1 of total phosphorus (TP), was dispensed into calibrated 1.0 liter containers with the following concentrations of flocculating agent: 0, 30, 75, 120, 150, 300, 450, 600, 750, 900 and 1,050 mg/l. The study showed that TP removal efficiency depends on the flocculant dose used for treatment. Increasing the flocculant dose decreases the efficiency of TP removal. One gram of Fe3+, given the flocculant dose of 40 gFe3+/m3, removed 0.5 g/m3of TP, while 120 g/m3of the flocculant removed around 40 percent less. According to the dependence of total P removed on the flocculant dose calculated by its active ingredient Fe3+, ferric sulphate flocculant is the most effective at doses of up to 60–80 g/m3of Fe3+. The use of ferric sulphate may be limited by its impact on pH and sulphate concentrations in the effluent wastewater. If pH is not additionally adjusted, a maximum concentration of 70 gFe3+/m3can be used in order to maintain the pH of wastewater above 6.5 and to keep final sulphate concentration below 300 mg/l. In summary, a maximum of 70 gFe3+/m3 can be used based on the total P removal efficiency and limiting factors. Such dose could remove 28 g total P/m3 from the wastewater. Since the permissible total P concentration in effluent wastewater is 4.0 mg/l, it is reasonable to use the ferric sulphate flocculant, containing 11.5 % of Fe3+ as an active ingredient, for treating wastewater with an initial total P concentration of up to 32 mg/len
dc.description.sponsorshipVytauto Didžiojo universitetas-
dc.description.sponsorshipŽemės ūkio akademija-
dc.format.extentp. 1-5-
dc.relation.ispartofRural Development 2015: Towards the Transfer of Knowledge, Innovations and Social Progress: Proceedings of the 7th International Scientific Conference, 19–20th November, 2015, Aleksandras Stulginskis University, Lithuania [elektroninis išteklius]. Akademija : Aleksandras Stulginskis University-
dc.relation.isreferencedbyConference Proceedings Citation Index (Web of Science)-
dc.relation.isreferencedbyAcademic Search Complete (EBSCO)-
dc.subjectFerric sulphateen
dc.subjectMeat processing wastewateren
dc.subjectTotal P removalen
dc.subject.otherAplinkos inžinerija / Environmental engineering (T004)-
dc.titleEfficiency of ferric sulphate for removal of phosphorus from meat processing wastewateren
dc.typeStraipsnis konferencijos medžiagoje Clarivate Analytics Web of Science ar/ir Scopus / Article in Clarivate Analytics Web of Science or Scopus DB conference proceedings (P1a)-
local.object{"source": {"code": "vdu", "handle": "50790"}, "publisher": {"other": ["Aleksandras Stulginskis University"], "list": false}, "db": {"clarivate": false, "scopus": false, "list": true}, "isbn": ["9786094490927"], "issn": ["2345-0916"], "doi": "10.15544/RD.2015.077", "code": "P1a", "subject": ["T004"], "url": [""], "country": "LT", "language": "en", "area": "T", "original": true, "pages": 5, "sheets": 0.357, "timestamp": "20170622155010.0", "account": {"year": 2015, "late": false}, "na": 1, "nip": 0, "affiliation": [{"contribution": 1, "aip": 1, "rel": "aut", "org": [{"create": true, "contribution": 1, "name": "Vytauto Didžiojo universitetas", "id": "111950396", "level": "0", "type": "uni", "research": "1", "status": "1", "unit": {"name": "Žemės ūkio akademija", "id": "09", "level": "1", "type": "aka", "research": "1", "status": "1"}}], "id": "FF53092531E032D6D46252922BE37867", "lname": "Gasiūnas", "fname": "Valerijus", "status": "1", "name": "Gasiūnas, Valerijus"}]}-
item.fulltextWith Fulltext-
item.grantfulltextopen-Žemės ūkio akademija-
Appears in Collections:Universiteto mokslo publikacijos / University Research Publications
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