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

Iron in 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.

Iron in acid wastewater
Hydrogen Sulfide Corrosion In Wastewater Collection And ...
Hydrogen Sulfide Corrosion In Wastewater Collection And ...

Wastewater, pH measurements were 6 at four of the industrial sites, 5.5 at one site, and 10 at the remaining site. ,Wastewater, sulfide ranged from 0.0 to 0.3 mg/1. The ,wastewater, sulfide level was 0.05 mg/1 at the site where ,wastewater, pH was 5.5, and 0.0 mg/1 at the site where ,wastewater, pH was 10.

Hydrogel chitosan sorbent application for nutrient removal ...
Hydrogel chitosan sorbent application for nutrient removal ...

According to the World Health Organization, the best methods for nitrate removal from wastewater are ionic exchange, reversed osmosis, and electrodialysis. Unfortunately, they are very expensive and also generate undesirable by-products (Shrimali and Singh 2001).

Method for anion removal by forming chemical precipitation ...
Method for anion removal by forming chemical precipitation ...

The present disclosure relates to a method for removing anions such as nitrate ion, sulfate ion, chloride ion, and phosphate ion existing in underground water, surface water or waste water. The method involves adding alumina cement and a calcium compound to the water containing the anion followed by applying an electric field thereto, thereby forming a chemical precipitate which is an insoluble complex salt.

(PDF) Study of kinetic and fixed bed operation of removal ...
(PDF) Study of kinetic and fixed bed operation of removal ...

The selection of the ,wastewater, treatment method In the treatment of ,wastewater,, little attention has been focused is usually based on the type of ,wastewater,, ,removal, rate, the waste on the mitigation of dissolved ,sulfate,; this may be attributed to concentration and cost of the treatment. its lower environmental risks and regulatory standards when com- While the variability in site-specific …

Efficacy of a Permeable Reactive Barrier at Nitrate ...
Efficacy of a Permeable Reactive Barrier at Nitrate ...

and sulfate,/chloride content. Next, a 22mm ashed Whatman GFF filter in a Swinex filter holder was attached to the pump and two 60ml collection bottles were filled. Upon returning to lab, one bottle was frozen for total dissolved nitrogen (TDN) and ,nitrate, analysis. The other was acidified using 1.5µM of 5N

Reducing sewer corrosion through integrated urban water ...
Reducing sewer corrosion through integrated urban water ...

The presence of ,sulfate, in ,wastewater, and its conversion to sulfide in anaerobic sewers are generally considered unavoidable, and water utilities around the world have been focusing on the ,removal, of sulfide after its formation (3, 5–7), incurring mitigation costs comparable to the value of asset losses .

Efficacy of a Permeable Reactive Barrier at Nitrate ...
Efficacy of a Permeable Reactive Barrier at Nitrate ...

and sulfate,/chloride content. Next, a 22mm ashed Whatman GFF filter in a Swinex filter holder was attached to the pump and two 60ml collection bottles were filled. Upon returning to lab, one bottle was frozen for total dissolved nitrogen (TDN) and ,nitrate, analysis. The other was acidified using 1.5µM of 5N

CHEMICAL DENITRIFICATION OF NITRATE FROM …
CHEMICAL DENITRIFICATION OF NITRATE FROM …

CHEMICAL DENITRIFICATION ,OF NITRATE, FROM GROUNDWATER VIA SULFAMIC ,ACID, AND ZINC METAL *A. Sabzali, M. Gholami, A. R ... and the ,nitrate removal, rate changed rapidly when pH value ranged between 3-4. ... so the application of this process for the ,underground, water resources with high ,sulfate, and chloride ion concentrations is limited.

Treatment of Water Using Water Hyacinth Water Lettuce and ...
Treatment of Water Using Water Hyacinth Water Lettuce and ...

5/2/2012, · This was due to osmotic pressure at higher concentrations not supporting the uptake of nitrate[140]. In the ground water samples, the nitrate removal was greatly dependent upon the presence of other nutrients, such as sulphate and phosphate, which …

Hydrogen Sulfide Corrosion In Wastewater Collection And ...
Hydrogen Sulfide Corrosion In Wastewater Collection And ...

Wastewater, pH measurements were 6 at four of the industrial sites, 5.5 at one site, and 10 at the remaining site. ,Wastewater, sulfide ranged from 0.0 to 0.3 mg/1. The ,wastewater, sulfide level was 0.05 mg/1 at the site where ,wastewater, pH was 5.5, and 0.0 mg/1 at the site where ,wastewater, pH was 10.

(PDF) Removal of Nitrate and Phosphate from Water by ...
(PDF) Removal of Nitrate and Phosphate from Water by ...

With the inte- 60 gration of the above equation and rearranging it, the resulting ,Removal, % 50 equation will be as follow (Eq. 2): 40 ln(Q e − Q t ) = −K I t + ln Q e (2) 30 NO3 ,Removal, 20 PO4 ,Removal, According to the correlation coefficient 0.93–0.94, it could 10 be concluded that linear regression is adequate to describe the experimental data.

Benzene and Toluene Biodegradation with Different ...
Benzene and Toluene Biodegradation with Different ...

column study. ,Sulfate,- and ,nitrate,-reducing bacteria enriched from a ,wastewater, treatment plant hardly degraded catechol within 20 days. However, an inoculum from a contaminated site was able to remove 90% of the initial 16.5 mg/L catechol, and Chemical Oxygen Demand was oxidized in parallel. Catechol biodegradation was

Nitrogen Removal Processes for Wastewater Treatment ...
Nitrogen Removal Processes for Wastewater Treatment ...

Ion exchange resin is an insoluble matrix usually made of a polymer that removes ions to purify or eliminate water hardness [17]. In anion exchange resins, nitrate usually replaces chloride and sulfate ions. The problem of these resins is their greater tendency to absorb sulfate instead of nitrate 4 Nitrogen Removal Processes for Wastewater Treatment

Benzene and Toluene Biodegradation with Different ...
Benzene and Toluene Biodegradation with Different ...

column study. ,Sulfate,- and ,nitrate,-reducing bacteria enriched from a ,wastewater, treatment plant hardly degraded catechol within 20 days. However, an inoculum from a contaminated site was able to remove 90% of the initial 16.5 mg/L catechol, and Chemical Oxygen Demand was oxidized in parallel. Catechol biodegradation was

Method for anion removal by forming chemical precipitation ...
Method for anion removal by forming chemical precipitation ...

The present disclosure relates to a method for removing anions such as nitrate ion, sulfate ion, chloride ion, and phosphate ion existing in underground water, surface water or waste water. The method involves adding alumina cement and a calcium compound to the water containing the anion followed by applying an electric field thereto, thereby forming a chemical precipitate which is an insoluble complex salt.

Hydrogen Sulfide Corrosion In Wastewater Collection And ...
Hydrogen Sulfide Corrosion In Wastewater Collection And ...

Wastewater, pH measurements were 6 at four of the industrial sites, 5.5 at one site, and 10 at the remaining site. ,Wastewater, sulfide ranged from 0.0 to 0.3 mg/1. The ,wastewater, sulfide level was 0.05 mg/1 at the site where ,wastewater, pH was 5.5, and 0.0 mg/1 at the site where ,wastewater, pH was 10.

CLU-IN | Technologies > Remediation > About Remediation ...
CLU-IN | Technologies > Remediation > About Remediation ...

Sulfate, is an alternate electron acceptor for microbial respiration in the absence of oxygen, ,nitrate,, Mn, and ferric iron. Depleted concentrations of ,sulfate, relative to background indicate that the groundwater environment is sufficiently reducing to sustain ,sulfate, reduction …

CHEMICAL DENITRIFICATION OF NITRATE FROM …
CHEMICAL DENITRIFICATION OF NITRATE FROM …

CHEMICAL DENITRIFICATION ,OF NITRATE, FROM GROUNDWATER VIA SULFAMIC ,ACID, AND ZINC METAL *A. Sabzali, M. Gholami, A. R ... and the ,nitrate removal, rate changed rapidly when pH value ranged between 3-4. ... so the application of this process for the ,underground, water resources with high ,sulfate, and chloride ion concentrations is limited.

Chat Online Inquiry Email

Business cooperation

+86 513525609655

Company address

Road West, North Branch, Jingkai Road, Puyang City