Welcome to the company ! we have many years of professional experience !
rsdgj@pyzyrsd.com +86 513525609655

Enterprises producing acid wastewater

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.

Certificate of Honor

Get in touch with us

We will confidentially process your data and will not pass it on to a third party.

Enterprises producing acid wastewater
Figure 5 from Chemically and Thermally Crosslinked PVA ...
Figure 5 from Chemically and Thermally Crosslinked PVA ...

Figure 5. SEM cross-section micrographs of: (A) pristine ,PVA, membrane, (B) ,PVA,-SSA membrane containing 23 wt.% SSA heated at 140 C, and (C) ,PVA,-SSA membrane containing 33 wt.% SSA heated at 140 C. - "Chemically and Thermally Crosslinked ,PVA,-Based …

Chromium-6 | Environmental Working Group
Chromium-6 | Environmental Working Group

EWG found cancer-causing ,chromium,-6 in tap water from 31 of 35 cities it tested. ... These “forever chemicals” ,pollute, water, don’t break down, and remain in ,the environment, and people for. Phthalates. These endocrine-disrupting “plasticizer” chemicals are everywhere.

Soil contamination - Wikipedia
Soil contamination - Wikipedia

Chronic exposure to, chromium,, lead and other metals, petroleum, solvents, and many pesticide and herbicide formulations, can, be carcinogenic,, can, cause congenital disorders, or, can, cause other chronic health conditions.

Heavy metal pollution: Insights into chromium eco-toxicity ...
Heavy metal pollution: Insights into chromium eco-toxicity ...

HMs ,pollute, the soil by transferring them from mines to different surrounding sites, HMs in ,the environment, may become more bio-available, the production rate of man-made cycles are faster than the natural one's, compared to receiving ,environment, the concentration of metals and metalloids is higher in the waste products (Sharma and Dhaliwal, 2019).

CHARACTERIZATION AND DETERMINATION OF BIOFILM …
CHARACTERIZATION AND DETERMINATION OF BIOFILM …

Film type Sericin/,PVA, Glycerol (%) ,PVA, 0/100 0 ,PVA,+Gly 0/100 1 ,PVA,+Gly+S C 5/100 1 ,PVA,+Gly+S R 5/100 1 As seen from Table 4, the permeances of pure ,PVA, films with and without glycerol are almost the same and very low, which indicate that ,PVA, films are impermeable to oxygen. On the other hand, preliminary studies had shown that

Investigating the ability of chromium (VI) adsorption by ...
Investigating the ability of chromium (VI) adsorption by ...

Chromium is, present in different types of industrial effluents, being responsible for, environmental pollution. Chromium, (VI) is highly soluble in water and, can, cause cancer for humans.

How Leather Is Slowly Killing the People and Places That ...
How Leather Is Slowly Killing the People and Places That ...

The primary environmental threat involves the, dumping, of, solid, and, liquid waste, that, contains leftover chromium, and other hazardous compounds. This is commonplace in regions without strong...

Rapid removal of ammonium from domestic wastewater using ...
Rapid removal of ammonium from domestic wastewater using ...

13/2/2018, · Importantly, effective regeneration of the hydrogels ,under, mildly ,acidic conditions, (i.e. pH 4.0) was demonstrated with minimal loss in sorption performance following multiple sorption/desorption ...

List of Toxic Metals that Pollute the Environment | Toxicology
List of Toxic Metals that Pollute the Environment | Toxicology

The potential sources of, chromium, in aquatic, environment, are effluents from tanneries and textile mills. Tannery wastes contain 10-50 ppm of, chromium., Its permissible limit in drinking water is 0.05 ppm. Toxicokinetics:, Chromium, (+3) is the most common form found in nature and in biological components.

(PDF) OVERVIEW ON CHROMIUM OCCURRENCE IN THE …
(PDF) OVERVIEW ON CHROMIUM OCCURRENCE IN THE …

As a consequence of the large variety of cha racteristics and uses, Cr (VI) has entered subsurface soil, surface water, and groundwater, so that t he. chromium pollution is increasing. T he main ...

Stabilization of PVA/Chitosan/TiO2 Nanofiber Membrane with ...
Stabilization of PVA/Chitosan/TiO2 Nanofiber Membrane with ...

1/5/2018, · ,PVA,/chitosan/TiO 2 nanofiber membrane have been prepared by electrospinning method. ,PVA,/Chitosan/TiO 2 nanofibers are poor stability in water. In this paper, the stabilization of

:: WorstPolluted.org : Projects Reports
:: WorstPolluted.org : Projects Reports

However,, chromium, contamination and high chemical oxygen demand are typical problems associated with tannery effluents, both of which, can, pose serious risks to the, environment, and human health. 38 In addition to creating potentially toxic wastewater, some tanneries also produce large amounts of solid waste that contain, chromium,, including: hide scraps, skins, and excess fats.

Heavy metal pollution: Insights into chromium eco-toxicity ...
Heavy metal pollution: Insights into chromium eco-toxicity ...

HMs ,pollute, the soil by transferring them from mines to different surrounding sites, HMs in the ,environment, may become more bio-available, the production rate of man-made cycles are faster than the natural one's, compared to receiving ,environment, the concentration of metals and metalloids is higher in the waste products (Sharma and Dhaliwal, 2019).

Curtin University | Civil and Environmental Engineering ...
Curtin University | Civil and Environmental Engineering ...

In order to improve the interfacial adhesion of nanoparticles in the ,PVA, blend, an endothermic carboxylation reaction ,under acidic conditions, was carried out on the TiO2 surface using chloroacetic acid. Electron microscopy studies identified various topographies upon functionalization of the coating and incorporation of TiO2 nanoparticles.

Road runoff and environmental pollution - Eniscuola
Road runoff and environmental pollution - Eniscuola

For example, exhaust gases and lubricants release lead, hydrocarbons, nickel and bromine. Iron and, chromium, detach from corroded bodywork, while sulphur, chlorine and cyanide are dispersed via cooling liquids. Finally, tyres deposit rubber particles containing lead, cadmium and zinc on the tarmac.

A Novel Immobilized Bacterial Consortium Bioaugmented in a ...
A Novel Immobilized Bacterial Consortium Bioaugmented in a ...

The study was undertaken to illustrate the degradation of domestic ,wastewater, collected from two scales of sewage ,treatment, plants, treated in a continuous laboratory-scale bioreactor ,under, aerobic ,conditions, using a synthetically developed consortium comprising of three highly efficient bacteria.

Colorful Chromium | ChemTalk
Colorful Chromium | ChemTalk

The Element ,Chromium,. ,Chromium, (Cr) can be found in group 6 on the periodic table. It is silvery, lustrous, and hard. Moreover, it is well known for creating colorful compounds and is often used to both protect and polish other metals through a process called electroplating.

When it no longer pays to pollute the environment | The ...
When it no longer pays to pollute the environment | The ...

22/8/2019, · There is more. “All tanneries are supposed to have two lines—one is supposed to let out normal effluent, and the other is supposed to let out chromium effluent.

Treatment of phenol-containing wastewater by photoelectro ...
Treatment of phenol-containing wastewater by photoelectro ...

Read ",Treatment, of ,phenol-containing wastewater by photoelectro-Fenton, method using supported nanoscale zero-valent iron, Environmental Science and Pollution Research" on ,DeepDyve,, the largest online rental service for scholarly research with thousands of academic publications available at …

International Biodeterioration & Biodegradation
International Biodeterioration & Biodegradation

of Aeromonas jandaei strain SCS5 ,under, anaerobic and aerobic ,conditions, have been investigated. The complete decolorization of MR at a concentration of 100 mg L 1 by A. jandaei strain SCS5 was obtained within 6 h for both anaerobic and aerobic suspended cultures, where the decolorization ratewas faster in ,acidic conditions, than basic ,conditions,.

Chat Online Inquiry Email

Business cooperation

+86 513525609655

Company address

Road West, North Branch, Jingkai Road, Puyang City