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oil refinery projects

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.

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oil refinery projects
Extractable Organic Components and Nutrients in Wastewater ...
Extractable Organic Components and Nutrients in Wastewater ...

Five hundred milliliters of wastewater was acidified to pH 2 with 6 N HCl and extracted twice with 100-ml portions of ethyl acetate. The aqueous portion was made alkaline to pH 10 with 5 N NaOH and extracted twice with 100 ml ethyl acetate, and the resultant aqueous portion was adjusted to pH 7 and extracted again with ethyl acetate.

Basic General Wastewater Study Guide
Basic General Wastewater Study Guide

MGD is a common ,wastewater, flow measurement in a treatment plant, expressed as millions of gallons (MG) of ,wastewater, flowing each day. pH is a measure of the acidity or alkalinity of a sample on a scale of 0 to 14 (,acidic, to ,alkaline,). A pH of 7 is neutral. Septage is the high strength waste pumped out of septic tanks, sometimes disposed at

Steel and Manufacturing - Water and Wastewater Treatment ...
Steel and Manufacturing - Water and Wastewater Treatment ...

Acidic,, ,alkaline,, and oily ,wastewater, are discharged during cold steel rolling. Non-degradable organic pollutants are emulsified in the discharged ,wastewater,. These contaminants are introduced by rolling, coating, annealing, pre-pickling, and ,alkaline, cleaning of the steel.

Electrochemical Recovery of Phosphorus from Acidic Cheese ...
Electrochemical Recovery of Phosphorus from Acidic Cheese ...

The recovery of phosphorus (P) from high-strength ,acidic, waste streams with high salinity and organic loads is challenging. Here, we addressed this challenge with a recently developed electrochemical approach and compared it with the chemical precipitation method via NaOH dosing. The electrochemical process recovers nearly 90% of P (∼820 mg/L) from cheese ,wastewater, in 48 h at 300 mA with an ...

Wastewater: Industrial Metal Finishing
Wastewater: Industrial Metal Finishing

Because pH is simply another means of referring to the hydrogen ion concentration, ,acidic, and basic solutions can be distinguished on the basis of pH values: pH < 7 ,Acidic, solution . pH = 7 Neutral solution . pH > 7 Basic solution . Neutralization of ,wastewater, that is highly ,acidic, (low pH) or highly basic (high pH) is required for

Wastewater: Industrial Metal Finishing
Wastewater: Industrial Metal Finishing

Because pH is simply another means of referring to the hydrogen ion concentration, ,acidic, and basic solutions can be distinguished on the basis of pH values: pH < 7 ,Acidic, solution . pH = 7 Neutral solution . pH > 7 Basic solution . Neutralization of ,wastewater, that is highly ,acidic, (low pH) or highly basic (high pH) is required for

Basic General Wastewater Study Guide
Basic General Wastewater Study Guide

MGD is a common ,wastewater, flow measurement in a treatment plant, expressed as millions of gallons (MG) of ,wastewater, flowing each day. pH is a measure of the acidity or alkalinity of a sample on a scale of 0 to 14 (,acidic, to ,alkaline,). A pH of 7 is neutral. Septage is the high strength waste pumped out of septic tanks, sometimes disposed at

Steel and Manufacturing - Water and Wastewater Treatment ...
Steel and Manufacturing - Water and Wastewater Treatment ...

Acidic,, ,alkaline,, and oily ,wastewater, are discharged during cold steel rolling. Non-degradable organic pollutants are emulsified in the discharged ,wastewater,. These contaminants are introduced by rolling, coating, annealing, pre-pickling, and ,alkaline, cleaning of the steel.

Efficient removal of Hg2+ Cd2+ and Pb2+ from aqueous ...
Efficient removal of Hg2+ Cd2+ and Pb2+ from aqueous ...

The results also demonstrated that PMTPM could efficiently extract Hg, Cd and Pb from the real ,alkaline mixed, industrial ,wastewater, and reduce the metal concentrations to below their discharge limits as per BIS standards. The leaching tests revealed higher stability of metal precipitates in ,alkaline, condition than in ,acidic,.

Treatment of Cheese Processing Wastewater by ...
Treatment of Cheese Processing Wastewater by ...

small quantities in dairy ,wastewater,. They may be ,alkaline, or ,acidic, and very often contain additives like phosphates, sequestering agents, surfactants, etc. [16]. in Sodium Alginate and Sawdust: Preparation of beads using sodium alginate was done according to Gummadi et al. …

Wastewater: Industrial Metal Finishing
Wastewater: Industrial Metal Finishing

Because pH is simply another means of referring to the hydrogen ion concentration, ,acidic, and basic solutions can be distinguished on the basis of pH values: pH < 7 ,Acidic, solution . pH = 7 Neutral solution . pH > 7 Basic solution . Neutralization of ,wastewater, that is highly ,acidic, …

Steel and Manufacturing - Water and Wastewater Treatment ...
Steel and Manufacturing - Water and Wastewater Treatment ...

Acidic,, ,alkaline,, and oily ,wastewater, are discharged during cold steel rolling. Non-degradable organic pollutants are emulsified in the discharged ,wastewater,. These contaminants are introduced by rolling, coating, annealing, pre-pickling, and ,alkaline, cleaning of the steel.

Wastewater; Industrial effluent and domestic sewage ...
Wastewater; Industrial effluent and domestic sewage ...

Wastewater, generated from residential area is called sewage. Sewage is extremely unpleasant in odor which contains large number of microorganisms, organic matters and other pollutants. Pure domestic sewage consists of discharge from bathroom, toilet, kitchen and laboratories. However sometimes industrial effluent are also ,mixed, with sewage.

Efficient removal of Hg2+ Cd2+ and Pb2+ from aqueous ...
Efficient removal of Hg2+ Cd2+ and Pb2+ from aqueous ...

The results also demonstrated that PMTPM could efficiently extract Hg, Cd and Pb from the real ,alkaline mixed, industrial ,wastewater, and reduce the metal concentrations to below their discharge limits as per BIS standards. The leaching tests revealed higher stability of metal precipitates in ,alkaline, condition than in ,acidic,.

Polyacrylamide for chemical fiber
Polyacrylamide for chemical fiber

Generally, acidic wastewater is neutralized by adding alkali, and alkaline wastewater is neutralized by adding acid. Where conditions permit, acid-base wastewater can also be used for neutralization. After pH adjustment, the wastewater needs to be pretreated to remove SS and oily substances, such as using air flotation to remove oil, coagulation and sedimentation to remove suspended solids and some organic …

Characteristics of Agricultural and Food Wastewater ...
Characteristics of Agricultural and Food Wastewater ...

20/3/2021, · The pollutants can enter the ,wastewater, streams through spills, leaks, and wasting of by-products. Apart from whey, which is ,acidic,, most dairy ,wastewater, streams are neutral or slightly ,alkaline,, but they tend to become ,acidic, rapidly due to the lactic acid produced as a …

Wastewater Treatment Technologies - WWTP
Wastewater Treatment Technologies - WWTP

Wastewater, Treatment Technologies ... - Each unit volume of waste ,is mixed, thoroughly with other unit ... - Applicable for highly ,acidic, and highly ,alkaline, effluents - ,Acidic, effluents may be neutralized by treatment with lime or lime slurry or caustic soda - ,Alkaline, …

pH Adjustment and Neutralization the basics
pH Adjustment and Neutralization the basics

Generally speaking a continuous system such as those represented in our labTREAT family of ,wastewater neutralization, systems are very well suited for relatively high flows of mildly ,acidic, or ,alkaline, (e.g. 2.0 < pH < 12.0) wastewaters.

Unit 1. Physical chemical and biological Characteristics ...
Unit 1. Physical chemical and biological Characteristics ...

Wastewater,: is simply that part of the water supply to the community or to the industry which has been used for different purposes and has been ,mixed, with solids either suspended or dissolved. ,Wastewater, is 99.9% water and 0.1% solids. The main task in treating the ,wastewater, is simply to remove most or all of this 0.1% of solids.

pH Adjustment and Neutralization the basics
pH Adjustment and Neutralization the basics

Generally speaking a continuous system such as those represented in our labTREAT family of ,wastewater neutralization, systems are very well suited for relatively high flows of mildly ,acidic, or ,alkaline, (e.g. 2.0 < pH < 12.0) wastewaters.

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