Evidence map›Paper›PMID 32372354›Full record

ArticleEnvironmental science and pollution research international2020

Chemical characterization in hydraulic fracturing flowback and produced water (HF-FPW) of shale gas in Sichuan of China.

Bing Wang, Mingyang Xiong, Peijie Wang, Bin Shi

Abstract read
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In one paragraph

Article in Environmental science and pollution research international, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
3.0field-weighted citation impact, top 8% of its field
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

1 citing paper in PubMed, 53 citations in OpenAlex.

  1. 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

4 authors at 1 institution in 1 country.

Bing WangDepartment of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, 610500, Sichuan, China. wangb@swpu.edu.cn.
Mingyang XiongDepartment of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, 610500, Sichuan, China.
Peijie WangDepartment of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, 610500, Sichuan, China.
Bin ShiDepartment of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, 610500, Sichuan, China.
Southwest Petroleum University · CN

Funding

National Major Science and Technology Projects of China (CN) 2016ZX05062
6 · The paper itself

Abstract

Large amounts of fracturing flowback and wastewater with complex compositions are produced during hydraulic fracturing. Characterization of hydraulic fracturing flowback and produced water (HF-FPW) is an important initial step in efforts to determine a suitable treatment method for this type of wastewater. In the present study, fracturing flowback and produced water samples were obtained from well CN-F and well CN-E in the prophase and anaphase stages of the Changning shale gas mining area. Chemical characterization of inorganic and organic substances was then conducted. Metal contents were determined by inductively coupled plasma optical emission spectroscopy (ICP-OES), and all inorganic anions involved were determined by ion chromatography. The organic pollutant components were analyzed in detail by combining Fourier transform infrared spectrometer (FTIR) and gas chromatography-mass spectrometer (GC-MS). Results showed that samples contained salt (TDS = 30,000-50,000 mg/L), metals (e.g., 650 ± 50 mg/L calcium), and total organic carbon (TOC = 32-178 mg/L). The organic substances detected in all samples could be divided into six categories, alkanes, aromatics, halogenated hydrocarbons, alcohols, esters, and ketones. C

Indexed as

Hydraulic FrackingChinaNatural GasWastewaterWaterWater Pollutants, ChemicalNatural GasWastewaterWaterWater Pollutants, ChemicalChemical characterizationFlowback and produced waterHydraulic fracturingShale gas

Identifiers

PMID32372354
OpenAlexW3022467472

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.