Evidence map›Paper›PMID 26549708›Full record

ArticleEnvironmental science and pollution research international2016

A field pilot-scale study of biological treatment of heavy oil-produced water by biological filter with airlift aeration and hydrolytic acidification system.

Min Zhang, Junming Wang, Zhongzhi Zhang, Zhaozheng Song, Zhenjia Zhang, Beiyu Zhang, Guangqing Zhang, Wei-Min Wu

Abstract read
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In one paragraph

Article in Environmental science and pollution research international, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

2 citing papers in PubMed.

  1. Article
  2. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors.

Min ZhangState Key Laboratory of Heavy Oil Processing, College of Chemical Engineering, China University of Petroleum, Beijing, 102249, People's Republic of China.
Junming WangDalian Design Branch, China Petroleum Engineering & Construction Corporation, Dalian, 116011, China.
Zhongzhi ZhangState Key Laboratory of Heavy Oil Processing, College of Chemical Engineering, China University of Petroleum, Beijing, 102249, People's Republic of China. bjzzzhang@163.com.
Zhaozheng SongState Key Laboratory of Heavy Oil Processing, Faculty of Sciences, China University of Petroleum, Beijing, 102249, People's Republic of China.
Zhenjia ZhangSchool of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China.
Beiyu ZhangDalian Design Branch, China Petroleum Engineering & Construction Corporation, Dalian, 116011, China.
Guangqing ZhangSchool of Mechanical, Materials & Mechatronic Engineering, University of Wollongong, Wollongong, NSW2522, Australia.
Wei-Min WuDepartment of Civil & Environmental Engineering, Center for Sustainable Development & Global Competitiveness, Stanford University, Stanford, CA, 94305-4020, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Heavy oil-produced water (HOPW) is a by-product during heavy oil exploitation and can cause serious environmental pollution if discharged without adequate treatment. Commercial biochemical treatment units are important parts of HOPW treatment processes, but many are not in stable operation because of the toxic and refractory substances, salt, present. Therefore, pilot-scale experiments were conducted to evaluate the performance of hydrolytic acidification-biological filter with airlift aeration (HA-BFAA), a novel HOPW treatment system. Four strains isolated from oily sludge were used for bioaugmentation to enhance the biodegradation of organic pollutants. The isolated bacteria were evaluated using 3-day biochemical oxygen demand, oil, dodecyl benzene sulfonic acid, and chemical oxygen demand (COD) removals as evaluation indices. Bioaugmentation enhanced the COD removal by 43.5 mg/L under a volume load of 0.249 kg COD/m(3) day and hydraulic retention time of 33.6 h. The effluent COD was 70.9 mg/L and the corresponding COD removal was 75.0 %. The optimum volumetric air-to-water ratio was below 10. The removal ratios of the total extractable organic pollutants, alkanes, and poly-aromatic hydrocarbons were 71.1, 94.4, and 94.0 %, respectively. Results demonstrated that HA-BFAA was an excellent HOPW treatment system.

Indexed as

Oil and Gas IndustryBacteria, AerobicBiodegradation, EnvironmentalBiological Oxygen Demand AnalysisBioreactorsChinaEquipment DesignFiltrationHydrolysisPilot ProjectsSewageWater Pollutants, ChemicalWater PurificationSewageWater Pollutants, ChemicalBioaugmentationBiodegradationBiological filter with airlift aerationHeavy oil-produced waterRefractory organic matterRemoval of total nitrogen

Identifiers

PMID26549708

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.