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

How to prove the acidity of wastewater with three clock reagent

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.

How to prove the acidity of wastewater with three clock reagent
Chromium Removal from Tannery Wastewater by ...
Chromium Removal from Tannery Wastewater by ...

The EC process is used for removing numerous pollutants from wastewater, such as chromium, dyes and organic contaminants in refinery effluents [ 13, 14 ]. Several factors affect the removal of chromium when EC is used including pH, current density (CD), electrode …

Hexavalent chromium removal by monopolar electrodes based ...
Hexavalent chromium removal by monopolar electrodes based ...

Generally, iron and aluminum electrodes are used commonly in the EC process for the ,electrolysis, of water. These electrodes are dissolved by ,electrolysis, and hydroxides as well as metal species being released which destabilizes the contaminant species and precipitates it out as oxidized anode and ,cathode, is reduced.

{Electrocoagulation of textile wastewater containing a ...
{Electrocoagulation of textile wastewater containing a ...

at ,acidic, conditions: 4Fe2+ + O 2 + 2H 2 O → 4Fe3+ + 4OH− (6) In addition, there is oxygen evolution reaction: 2H 2 O − 4e-→ O 2 + 4H+ (7) The reaction at the ,cathode, is: 2H 2 O + 2e-→ H 2 + 2OH− (8) The EC treatment has received great attention in recent years due to its unique features, such as

Application of iron-loaded activated carbon electrodes for ...
Application of iron-loaded activated carbon electrodes for ...

Chromium, is widely used in a variety of industrial process. As a result, a large amount of ,chromium,-contaminated waste is produced, which pollute the soil, water and atmosphere 1,2,3,4.,Chromium, ...

An overview of chromium removal techniques from tannery ...
An overview of chromium removal techniques from tannery ...

9/8/2020, · Neem leaves can remove ,chromium, (VI) from ,wastewater, as well (Gopalakrishnan et al. 2013). As tea leaves consist of some functional groups related with cellulose, hemicelluloses, lignin, condensed tannins, and structural proteins, these functional groups are greatly responsible for good metal uptake (Nandal et al. 2014 ; Wang et al. 2006 ; Aikpokpodion et al. 2010 ) which were confirmed …

Electrochemical treatment of spent tan bath solution for ...
Electrochemical treatment of spent tan bath solution for ...

An electrochemically assisted coagulation for the removal of ,chromium, from water has been studied using zinc or magnesium as anode and galvanized iron as ,cathode,. The results showed that the optimum removal efficiency of 95% was achieved at a current density of 0.2 A·dm −2 , at a pH of 7.0 ( Vasudevan et al. 2010 ; Vasudevan & Lakshmi 2011 ).

Treatment of Electroplating Cr(VI) for Reduction Cr(VI) by ...
Treatment of Electroplating Cr(VI) for Reduction Cr(VI) by ...

4/5/2016, · ,chromium, compounds are toxic and carcinogenic. In contrast, relative toxicity of Cr(III) is low and in its trace amounts, it is not a problem for the envaluminumment [Fu, 2011]. The most common method used for the removal of ,chromium, from ,wastewater, is the ,acidic, reduction of Cr(VI) to Cr(III) (pH

MICROBIAL DESALINATION CELL TECHNOLOGY FOR …
MICROBIAL DESALINATION CELL TECHNOLOGY FOR …

In this study, an reactor of MDC using ,wastewater, involving Cr+6 as the catholyte was used simultaneously to desalinate brine and reduce Cr+6, in the desalination compartment and ,cathode, compartment , respectively. The desalination rate was 2.1 mg/h, and the efficiency of ,chromium, ion removal attained 83%,

Research on treatment of wastewater containing heavy metal ...
Research on treatment of wastewater containing heavy metal ...

1/2/2018, · This paper introduced the working principle of MFC, the classification of ,cathode,, and the research progress on the treatment of ,wastewater containing, Cr(VI), Cu(II), Ag(I), Mn(II) and Cd(II) by MFC. The study found that different ,cathode,, different heavy metals anddifferent hybrid systems would affect the performance of the system and removal effect for heavy metal in MFC.

Electricity Generation Using an Air-Cathode Single Chamber ...
Electricity Generation Using an Air-Cathode Single Chamber ...

Bacteria present in domestic ,wastewater, were used as the biocatalyst, and glucose and ,wastewater, were tested as substrates. Power density was found to be much greater than typically reported for aqueous-,cathode, MFCs, reaching a maximum of 262 ± 10 mW/m 2 (6.6 ± 0.3 mW/L; liquid volume) using glucose. Removing the PEM increased the maximum ...

Removal of Chromium Using Electrochemical Approaches: A Review
Removal of Chromium Using Electrochemical Approaches: A Review

Porous carbon felt and graphite felt have been used as cathode materials for the electrochemical removal of chromium from wastewater [18-21]. To effectively remove chromium from plating industry effluents, iron electrodes in bipolar mode were used for the electrochemical precipitation of Cr(VI) [22].

{Electrocoagulation of textile wastewater containing a ...
{Electrocoagulation of textile wastewater containing a ...

at ,acidic, conditions: 4Fe2+ + O 2 + 2H 2 O → 4Fe3+ + 4OH− (6) In addition, there is oxygen evolution reaction: 2H 2 O − 4e-→ O 2 + 4H+ (7) The reaction at the ,cathode, is: 2H 2 O + 2e-→ H 2 + 2OH− (8) The EC treatment has received great attention in recent years due to its unique features, such as

Research on treatment of wastewater containing heavy metal ...
Research on treatment of wastewater containing heavy metal ...

1/2/2018, · This paper introduced the working principle of MFC, the classification of ,cathode,, and the research progress on the treatment of ,wastewater containing, Cr(VI), Cu(II), Ag(I), Mn(II) and Cd(II) by MFC. The study found that different ,cathode,, different heavy metals anddifferent hybrid systems would affect the performance of the system and removal effect for heavy metal in MFC.

Application of the electrocoagulation technique for ...
Application of the electrocoagulation technique for ...

cess, hydrogen gas is released from the ,cathode, which can help to float the flocculated particles out of the water, a process which is sometimes called electroflocculation [26]. The main reactions are: Anode reaction M(s)→M 2+ (aq)+ne − (1) 2H2O(l)→4H + (aq)+O2(g)+4e − (2) ,Cathode, reaction Mn+ (aq)+ne −→M (s) (3) 2H2O(l)+2e −→2H 2(g)+3OH − (4)

US4318789A - Electrochemical removal of ... - Google Patents
US4318789A - Electrochemical removal of ... - Google Patents

A stream containing chromium and other heavy metals is fed through an electrolytic cell having a flow-through anode of lead shot and a flow-through cathode. The stream passes through the lead shot,...

CATHODE ELECTROCHEMICAL CELL AND ITS USE - HÖGANÄS …
CATHODE ELECTROCHEMICAL CELL AND ITS USE - HÖGANÄS …

An electrochemical cell ,containing, a sacrificial electrode suitable for electrocoagulation as well as an electrocoagulation process for removing various pollutants from water or ,wastewater, by the use of the electrochemical cell. Also, the sacrificial electrode itself. Several electrochemical cells can be coupled to an electrochemical cell assembly.

Electrochemical treatment of spent tan bath solution for ...
Electrochemical treatment of spent tan bath solution for ...

An electrochemically assisted coagulation for the removal of chromium from water has been studied using zinc or magnesium as anode and galvanized iron as cathode. The results showed that the optimum removal efficiency of 95% was achieved at a current density of 0.2 A·dm −2 , at a pH of 7.0 ( Vasudevan et al. 2010 ; Vasudevan & Lakshmi 2011 ).

Application of the electrocoagulation technique for ...
Application of the electrocoagulation technique for ...

cess, hydrogen gas is released from the ,cathode, which can help to float the flocculated particles out of the water, a process which is sometimes called electroflocculation [26]. The main reactions are: Anode reaction M(s)→M 2+ (aq)+ne − (1) 2H2O(l)→4H + (aq)+O2(g)+4e − (2) ,Cathode, reaction Mn+ (aq)+ne −→M (s) (3) 2H2O(l)+2e −→2H 2(g)+3OH − (4)

REMOVAL OF MOLYBDENUM FROM SOLUTION BY ELECTROLYSIS …
REMOVAL OF MOLYBDENUM FROM SOLUTION BY ELECTROLYSIS …

Authors: Golubeva, I A Publication Date: Wed Jan 01 00:00:00 EST 1969 Research Org.: Inst. of Metallurgy, Moscow OSTI Identifier: 4803558 NSA Number:

Chat Online Inquiry Email

Business cooperation

+86 513525609655

Company address

Road West, North Branch, Jingkai Road, Puyang City