Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
2007-7-20
pubmed:abstractText
The particle size distribution, flocculation index, Zeta potential and oil content in water were tested during flocculation of wastewater produced in polymer flooding of oil field. CHP-03, a mixture of a modified pluronic demulsifer and a weak-cationic flocculant, was used to improve the efficiency of oil droplet collision. The effects of polyacrylamide, temperature, and mixing speed on flocculation dynamics are discussed. Polyacrylamide affects the oil-water separation by obstructing the aggregation of small oil droplets, but electrostatic repulsion is not a major factor in preventing flocculation. The local temperature has a limited effect on flocculation. Fast mixing favors the growth of flocs, while slow mixing is suitable for the coalescence of oil droplets. Addition of 250 mg/L CHP-03 can enhance the oil-water separation and remove 92% of the oil content.
pubmed:language
chi
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0250-3301
pubmed:author
pubmed:issnType
Print
pubmed:volume
28
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
761-5
pubmed:meshHeading
pubmed:year
2007
pubmed:articleTitle
[Flocculation of wastewater produced in polymer flooding].
pubmed:affiliation
School of Environmental Science and Engineering, Shandong University, Ji'nan 250100, China. lulei@mail.sdu.edu.cn
pubmed:publicationType
Journal Article, English Abstract, Research Support, Non-U.S. Gov't