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

oil well drilling fluids

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.

oil well drilling fluids
Lime Use in Wastewater Treatment: Design and Cost Data
Lime Use in Wastewater Treatment: Design and Cost Data

CHARACTERISTICS OF ,LIME, CHEMICALS Chemical Common name Formula Quicklime CaO Recovered ,lime, CaO Dolomitic ,lime, CaO • MgO (MgO content varies) ,Hydrated lime, Ca(OH) Carbide ,lime, Ca(OH)2 Dolomitic ,hydrated lime, Ca(OH), + Mg(OH) z z Limestone (unbumed Itrne) CaCO_ 3 Dolomite CaCO.

2016 Wastewater Guidelines - bsi-sport.de
2016 Wastewater Guidelines - bsi-sport.de

wastewater, discharge parameters such as ,pH,, BOD $, COD, etc, as noted in Table 1, ... ortho esters of phthalic ,acid, 11 | Polycyclic Aromatic Hydrocarbons (PAHs) ... reporting water and ,wastewater, test results for the ,value, chain of ZDHC contributors.

(PDF) Lime Treatment of Acid Mine Drainage in Canada
(PDF) Lime Treatment of Acid Mine Drainage in Canada

Lime treatment, essentially consists in bringing the pH of the AMD to a point where the metals of concern are insoluble. These metals therefore precipitate to form minuscule particles.

Recovery of Volatile Fatty Acids from Fermented Wastewater ...
Recovery of Volatile Fatty Acids from Fermented Wastewater ...

The ,pH, of a VFA-containing fermented ,wastewater, is typically 5–7, and ... at room temperature (20 ± 1 °C). The exact mass of dry adsorbent was determined by correcting the initial ,value, (∼1 g) for the amount of ... The best IE performances were obtained at ,pH, 3-4.5 in the presence of acetic ,acid, alone, and at ,pH, 6.5 with the actual ...

pH Neutralization in Industrial Wastewater
pH Neutralization in Industrial Wastewater

measures the ,pH, of the solution. The ,pH, controller has a preset ,pH, set point for the effluent and uses this measured ,value, to determine whether the effluent is within compliance with that set point. If not, chemical pump(s) are operated to inject ,acid, or caustic solutions as required to bring the effluent in the holding tank to the correct level.

Wastewater Demineralization by Ion Exchange
Wastewater Demineralization by Ion Exchange

Hydrated lime, dosages can be adjusted to raise the pH for complete elimination ,of acid,, while limestone produces a maximum pH of slightly over 6. ,Hydrated lime, can be used for neutralization of more concentrated ,acid,, while limestone can only be used on dilute acids with …

1 Wastewater treatment equipment - ELEPON
1 Wastewater treatment equipment - ELEPON

neutralized with stable ,pH, control by addition on-site strong alkali ,wastewater, to sulfuric ,acid,, hydrochloric ,acid,, etc., furthermore installed or moved easy by compacting equipment. - The Unit treats within 5.8 - 8.6 as ,pH, to various industrial ,wastewater, contained ,acid,/alkali, and has

Using a pH Meter to Test Wastewater - from Cole-Parmer Blog
Using a pH Meter to Test Wastewater - from Cole-Parmer Blog

14/11/2013, · Stir the sample. (Note: Allowing ,wastewater, samples with a ,pH, greater than 7 to be exposed to carbon dioxide (CO 2 ) in the atmosphere can result in the formation of carbonic ,acid,, which will lower the sample’s ,pH value,—so minimize exposure to the air.) 3. Rinse electrode and ATC probe with DI water and blot dry.

Study of Physico-Chemical Characteristics of Wastewater in ...
Study of Physico-Chemical Characteristics of Wastewater in ...

Generally, the ,wastewater, collected at the monitored sites is slightly alkaline. The ,pH, varies between 6.8 and 8.3—average ,value, 7.82—thus the ,pH, values are within the accepted range for Danube River according to the Romanian law [], which is between 6.5 and 9.0.The ,pH, variation is relatively similar at collectors S1–S4 (domestic and/or mixed domestic-industrial contribution).

Analysis Method for pH and Alkalinity | Water Resources ...
Analysis Method for pH and Alkalinity | Water Resources ...

with the digital titrator and sulfuric ,acid, cartridge to ,pH, 4.5; record titrant used to this point as A. Continue the titration to ,pH, 4.2. Record the titrant used to this point as B. If the initial ,pH, is less than 4.5, record the initial ,pH value,. Titrate until the ,pH, is 0.3 units below the …

Carbide lime in acid mine drainage treatment - ScienceDirect
Carbide lime in acid mine drainage treatment - ScienceDirect

1/2/2017, · Carbide ,lime, or ,lime, sludge is a waste of acetylene gas process when calcium carbide reacts with water through the hydrolysis process [1], [2]. Carbide ,lime, contains ≈85–95% Ca (OH) 2, ≈1–10% CaCO 3 and 1–3% unreacted carbon and silicates [2], [3], [4]. The ,equation, that produced carbide ,lime, …

Alkalinity and pH - Anaerobic Digesters - Flanders Health Blog
Alkalinity and pH - Anaerobic Digesters - Flanders Health Blog

19/4/2021, · Although anaerobic digester efficiency is satisfactory within the ,pH, range of 6.8 to 7.2, it is best when the ,pH, is within the range of 7.0 to 7.2. Values of ,pH, below 6 or above 8 are restrictive and somewhat toxic to methane-forming bacteria (Table 16.1). To maintain a stable ,pH,, a high level of alkalinity is required.

Acid Characteristics of Dissolved Organic Matter in Wastewater
Acid Characteristics of Dissolved Organic Matter in Wastewater

wastewater, treatment system can significantly affect the uptake of heavy ... the same initial ,pH value,, which is in the range of 6 to 8. To obtain consistent titration data, the ,pH, change after each ,acid,/ base addition should not exceed 0.3 units. Also, the final ,pH

Resource utilization of pickling wastewater (waste acid)
Resource utilization of pickling wastewater (waste acid)

Taking the treatment of waste ,acid, containing iron as an example, although the regeneration and recovery ,of acid, are realized, the utilization ,value of acid, pickling iron oxide produced is not high. Spray roasting is widely used in the regeneration process of waste ,acid, in large iron and steel works, but it is not suitable for the treatment ,of acid, pickling ,wastewater, (waste ,acid,).

pH in Drinking-water - WHO
pH in Drinking-water - WHO

The ,pH, of water is a measure of the ,acid,–base equilibrium and, in most natural ... It is not considered to be necessary to propose a health-based guideline ,value, for ,pH,. 6. REFERENCES APHA (1989) Standard methods for the examination of water and ,wastewater,, 17th ed. Washington, DC, American ,Public Health, Association.

Lime Use in Wastewater Treatment: Design and Cost Data
Lime Use in Wastewater Treatment: Design and Cost Data

CHARACTERISTICS OF ,LIME, CHEMICALS Chemical Common name Formula Quicklime CaO Recovered ,lime, CaO Dolomitic ,lime, CaO • MgO (MgO content varies) ,Hydrated lime, Ca(OH) Carbide ,lime, Ca(OH)2 Dolomitic ,hydrated lime, Ca(OH), + Mg(OH) z z Limestone (unbumed Itrne) CaCO_ 3 Dolomite CaCO.

Chat Online Inquiry Email

Business cooperation

+86 513525609655

Company address

Road West, North Branch, Jingkai Road, Puyang City