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Treatment of Sichuan fracturing flowback fluid

Established in 2001, Puyang Zhong Yuan Restar Petroleum Equipment Co.,Ltd, “RSD” for short, is Henan’s high-tech enterprise with intellectual property advantages and independent legal person qualification. With registered capital of RMB 50 million, the Company has two subsidiaries-Henan Restar Separation Equipment Technology Co., Ltd We are mainly specialized in R&D, production and service of various intelligent separation and control systems in oil&gas drilling,engineering environmental protection and mining industries.We always take the lead in Chinese market shares of drilling fluid shale shaker for many years. Our products have been exported more than 20 countries and always extensively praised by customers. We are Class I network supplier of Sinopec,CNPC and CNOOC and registered supplier of ONGC, OIL India,KOC. High quality and international standard products make us gain many Large-scale drilling fluids recycling systems for Saudi Aramco and Gazprom projects.

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Treatment of Sichuan fracturing flowback fluid
Microbial Application to Improve Olive Mill Wastewater ...
Microbial Application to Improve Olive Mill Wastewater ...

Olive mill ,wastewater, (OMW) contains valuable and interesting bioactive compounds, among which is hydroxytyrosol, which is characterized by a remarkable antioxidant activity. Due to the health claims related to olive polyphenols, the aim of this study was to obtain an extract from OMW with an increased level of hydroxytyrosol by means of microbial enzymatic activity.

Perfluorooctanoic acid - Wikipedia
Perfluorooctanoic acid - Wikipedia

Perfluorooctanoic acid, (PFOA) (conjugate base perfluorooctanoate) — also known colloquially as C8 — is a perfluorinated carboxylic ,acid, produced and used worldwide as an industrial surfactant in chemical processes and as a material feedstock.It is a product of health concern and subject to regulatory action and voluntary industrial phase-outs.

A Robust Method for the Determination of Cr(VI) and Cr(III ...
A Robust Method for the Determination of Cr(VI) and Cr(III ...

Fifteen kinds of industrial ,wastewater, samples were collected from eight industrial sectors, as listed in Table 1. All samples were filtered through 0.45-μm cellulose nitrate membrane filters (Advantec Toyo Kaisha, Tokyo, Japan). The filtrates were Table 1 Types of industrial ,wastewater, samples No. Sample 1 Metal plating ,factory, 1

Occurrence and characteristics of perfluoroalkyl ...
Occurrence and characteristics of perfluoroalkyl ...

In particular, perfluorooctanoic acid (PFOA) and perfluorooctane sulfonate (PFOS) have been repeatedly recorded at higher concentrations in urban wastewater and are detected in almost all environmental media, including sediment, landfill leachates, surface water, marine water, and even drinking water (Stahl et al. 2011; Lu et al. 2015; Wluka et al. 2017).

Minamata Disease » Sustainability » Boston University
Minamata Disease » Sustainability » Boston University

2/2/2021, · ,Minamata Disease,. ,Minamata disease,, sometimes referred to as Chisso-,Minamata disease,, is a neurological syndrome caused by severe mercury poisoning.Symptoms include ataxia, numbness in the hands and feet, general muscle weakness, narrowing of the field of vision and damage to hearing and speech.In extreme cases, insanity, paralysis, coma and death follow within weeks of the onset of …

How toxic chemicals from a DuPont plant wound up beneath ...
How toxic chemicals from a DuPont plant wound up beneath ...

14/2/2018, · Pompton Lakes Mayor John Sinsimer desperately needed a Bible. One role of being mayor in the Passaic County town was to preside over marriage ceremonies, and the borough had a …

N-Nitrosodimethylamine (NDMA) as a Drinking Water ...
N-Nitrosodimethylamine (NDMA) as a Drinking Water ...

NDMA was detected, in treated drinking water from sources that were not impacted by ,wastewater, effluent or industrial sources, especially when monochloramine was used to maintain a chlorine residual (DHS, 2002). Although ,NDMA, is listed as a priority pollutant (CFR, 2001), a …

COVID-19: Screening of dormitory wastewater effective ...
COVID-19: Screening of dormitory wastewater effective ...

“Despite its potential, the use of ,wastewater, surveillance to detect COVID-19 spread is still in its early stages,” they said, adding that the NEA is working to increase coverage by expanding its sampling to more ,wastewater, nodes. “More information on the results of the ,wastewater, surveillance in Singapore will be revealed when ready.”

Agricultural wastewater treatment - Wikipedia
Agricultural wastewater treatment - Wikipedia

Agricultural ,wastewater, treatment is a farm management agenda for controlling pollution from surface runoff that may be contaminated by chemicals in fertiliser, pesticides, animal slurry, …

Characterisation of wastewater for modelling of wastewater ...
Characterisation of wastewater for modelling of wastewater ...

Characterisation of ,wastewater, for modelling of ,wastewater, treatment plants receiving industrial effluent ... between communities can be more readily ,detected,. Industrial effluent, on the other hand, ... at 7.0 ± 0.2 by addition of hydrochloric ,acid, and sodium hydroxide. The dissolved oxygen concentration (DO) was .

POREX Tubular Membrane Filter (TMF™) Applied in a Plastic ...
POREX Tubular Membrane Filter (TMF™) Applied in a Plastic ...

The processes at this facility require a large and sophisticated ,wastewater, treat-ment system for the whole ,factory,. Separate TMF skids are installed for each water stream. In total there are 60 13-tube modules in this system. A chart of TMF specifications for each different ,wastewater, stream is below. ,Wastewater Acid,/Alkaline and Copper Nickel Chrome

The Minamata disease Outbreak - Product Safety
The Minamata disease Outbreak - Product Safety

3/2/2019, · In February 1959, the mercury distribution in Minamata Bay was investigated. Large quantities of mercury were detected in fish, shellfish and sludge from the bay. The highest concentrations centered around the Chisso factory wastewater canal and decreased going out to sea, clearly identifying the plant as the source of contamination.

Installation and Operation Guide
Installation and Operation Guide

pling routine when a full bottle is ,detected,. At the heart of the sampler is the GLS controller. It is environ-mentally sealed to provide protec tion from accidental submersion and long term exposure to high humidity and corrosive gases. Its tactile keypad and 2 line, 20 character display simplify oper-ation.

Perfluorooctanoic acid - Wikipedia
Perfluorooctanoic acid - Wikipedia

Perfluorooctanoic ,acid, (PFOA) (conjugate base perfluorooctanoate)—also known colloquially as C8—is a perfluorinated carboxylic ,acid, produced and used worldwide as an industrial surfactant in chemical processes and as a material feedstock, and is a health concern and subject to regulatory action and voluntary industrial phase-outs.

Notification of Ministry of Industry Industrial Effluent ...
Notification of Ministry of Industry Industrial Effluent ...

Factory, Act. “,Wastewater,” means water generated from ,factory, activities, workers’ activities or other activities in a ,factory, that will be discharged to from a ,factory, or an industrial operation zone. Article 5 The characteristics of effluent discharging from a ,factory, shall be as follows:: 5.1 pH not lower than 5.5 but not exceeding 9.0

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