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

Scaling of acid wastewater pipeline

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.

Scaling of acid wastewater pipeline
(PDF) Removal of Formic Acid from Wastewater using Three ...
(PDF) Removal of Formic Acid from Wastewater using Three ...

COD from the citric acid wastewater was effectively removed in CTDER. The COD removal rate in CTDER was 1.7 times that of the continuous 2D reactor. Aeration in the CTDER had a negative effect on...

COD and BOD Reduction of Domestic Wastewater using ...
COD and BOD Reduction of Domestic Wastewater using ...

The results showed that the activated sludge, sand filter and the activated carbon were effective for removal of COD from the wastewater. The reduction in COD was from 130.33 mg L-1 (raw water) to 10.2 mg L-1 (treated water) with a mean removal efficiency of 92.17%. The study results agree with those of Healy et al. (2006) who studied the performance of a stratified sand filter in removal of chemical …

Removal of hard COD from biological effluent of coking ...
Removal of hard COD from biological effluent of coking ...

In this study, a synchronized oxidation-adsorption (SOA) technology was proposed for the removal of hardly biodegradable COD (hard COD) from the biological effluent of coking wastewater, and its performance was verified in a full-scale coking industrial park wastewater treatment plant (Q = …

What are the ways of COD reduction in industrial waste water?
What are the ways of COD reduction in industrial waste water?

Physico-chemical treatment is the treatment process which remove the impurities by coagulation, and flocculation followed by sedimentation. Considering the acidic wastewater, you can settle the...

Wastewater COD removal using sol-gel immobilized humic acid
Wastewater COD removal using sol-gel immobilized humic acid

Key words: ,Wastewater,, humic ,acid,, ,COD,, sol-gel. INTRODUCTION Pollution of water by organic and inorganic chemicals is of serious environmental concern. The organic content of ,wastewater, is traditionally measured using lumped parameters such as biological oxygen demand (BOD), ,chemical oxygen demand COD,), total suspended solids (TSS). These ...

COD removal from industrial wastewater using activated ...
COD removal from industrial wastewater using activated ...

COD removal, from industrial ,wastewater, using ... (CAC) with respect to uptake of the organic components responsible for the ,chemical oxygen demand, (,COD,) ... pretreated by washing the container with dilute hydrochloric ,acid, and later rinsed with distilled water.

Wastewater Grease and Fatty Acid Removal Study- Aquafix
Wastewater Grease and Fatty Acid Removal Study- Aquafix

27/11/2018, · A 2.5% solution of sodium carbonate, and 0.05M hydrochloric acid were used to control pH. SmartBOD was added as a source of COD. 10,000 mg/L COD solutions were made and added to the wastewater to obtain the target of 400 mg/L COD. Temperature was …

Reducing COD in final effluent | NTS chemicals for industry
Reducing COD in final effluent | NTS chemicals for industry

The NTS CLEAR 2550 can efficiently reduce the COD of waste water. NTS CLEAR 2550 is used in the physicochemical standard stations. The NTS CLEAR 2550 is a liquid, easy to use and economical. The NTS CLEAR 2550 is recommended to remove color wastewater trouble and suspended solids.

Removal of hard COD from biological effluent of coking ...
Removal of hard COD from biological effluent of coking ...

In comparison to PFSC, SOA performed better in terms of average COD removal (39% vs 18%) from the biological effluent. Wastewater fractionation result showed that SOA performed better in the removal of the hydrophobic acid matters, which was supported by …

Reduction of Chemical Oxygen Demand (COD) from Waste Water ...
Reduction of Chemical Oxygen Demand (COD) from Waste Water ...

28/8/2018, · Wastewaters containing organics dramatically contaminate the environment. As an example, ,wastewater, from alcohol manufacturing plant has a ,chemical oxygen demand, (,COD,) as high as 35,000–40,000 mg/1.

Enhanced efficiency of dissolved air flotation for ...
Enhanced efficiency of dissolved air flotation for ...

3/10/2011, · Wenqi et al. found that the acidification process of coal gasification, wastewater, using pure hydrochloric, acid, can reduce COD, total organic carbon (TOC), and oil by about 3.1%–11.3%, 6%–10.8% and 25.2%–57.4%, respectively, with pH value in the range of 4 to 7.

An experimental investigation of chemical oxygen demand ...
An experimental investigation of chemical oxygen demand ...

The removal of chemical oxygen demand COD from wastewater containing oxalic acid was experimentallyŽ. investigated using a three-phase three-dimensional electrode reactor. The experimental results show that the removal efficiency depends on the applied cell voltage, airflow, electrolysis time and the number of repeated runs.

The Simulation and Experimental Study of COD Removal from ...
The Simulation and Experimental Study of COD Removal from ...

Natural rubber industries produce ,wastewater, with the following characteristics: a pH of 4.2–4.8, ,Chemical Oxygen Demand, (,COD,) of 2,000–6,000 mg/L, Biological Oxygen Demand (BOD5) of 1,000–3,500 mg/L, 250–400 mg/L of suspended solids, and a Total Kjeldahl Nitrogen (TKN) of 250–700 mg/L (Vijayaraghavan et al., 2008).

Biological Treatment of Petrochemical Wastewater | IntechOpen
Biological Treatment of Petrochemical Wastewater | IntechOpen

9/4/2018, · Petroleum refinery wastewater COD removal was generally high from 70 to 98% in the mentioned aerobic system (Table 3), which in anaerobic system is from 70 to 93%. The contact and extended active sludge process can achieve high COD removal rate of 89–95% (Table 3) at a feed to microorganism ratio of 0.38 [ 25 ].

COD removal from industrial wastewater using activated ...
COD removal from industrial wastewater using activated ...

COD removal, from industrial ,wastewater, using ... (CAC) with respect to uptake of the organic components responsible for the ,chemical oxygen demand, (,COD,) ... pretreated by washing the container with dilute hydrochloric ,acid, and later rinsed with distilled water.

Current recovery from sewage wastewater using ...
Current recovery from sewage wastewater using ...

These results indicate that the acid used during electrochemical oxidation does not affect the production of current. The COD removal rates were calculated from the initial and final CODs determined immediately after and before wastewater replacement.

Reducing COD in final effluent | NTS chemicals for industry
Reducing COD in final effluent | NTS chemicals for industry

The NTS CLEAR 2550 can efficiently reduce the COD of waste water. NTS CLEAR 2550 is used in the physicochemical standard stations. The NTS CLEAR 2550 is a liquid, easy to use and economical. The NTS CLEAR 2550 is recommended to remove color wastewater trouble and suspended solids.

Chat Online Inquiry Email

Business cooperation

+86 513525609655

Company address

Road West, North Branch, Jingkai Road, Puyang City