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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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solid waste disposal everett
Coagulation and Flocculation in Water and Wastewater ...
Coagulation and Flocculation in Water and Wastewater ...

Acid, alum formulations are aluminum sulfate with 1 to 15-percent free sulfuric ,acid,. Their effectiveness with TOC removal applications is due to the enhanced depression of ,pH,. TOC or NOM reductions depend on the type and dosage of coagulant, the ,pH,, temperature, raw water quality and NOM characteristics.

PERACETIC ACID AS A METHOD OF EFFLUENT WASTEWATER ...
PERACETIC ACID AS A METHOD OF EFFLUENT WASTEWATER ...

4900 – 230000 MPN/,100 mL,. All final effluent (FE) fecal counts were below 10,000 MPN/,100 mL,, which would satisfy the discharge limit once the 51:1 dilution factor is taken into account (200 MPN/,100 mL, X 51=10200 MPN/,100 mL,). Table 1: Log reduction in fecal coliform counts and residual PAA levels at final effluent at various doses.

pH meters | Hanna Instruments - Official UK Store
pH meters | Hanna Instruments - Official UK Store

The people here at Hanna don't just create products - we create testing systems that help improve everything from the taste of your local craft beer to the quality of the water in your swimming pool.

New trends in removing heavy metals from industrial wastewater
New trends in removing heavy metals from industrial wastewater

1/10/2011, · The amicon-generated cellulose YM10 was used as the ultrafilter. About ,100,% and 95% rejection were achieved at ,pH, ranging from 8.5 to 9.5 for Cu(II) and Zn(II) ions, respectively. The results indicated that chitosan significantly enhanced metals removal by 6–10 times compared to using membrane alone.

Laboratory Procedures: Analysis for Wastewater Treatment ...
Laboratory Procedures: Analysis for Wastewater Treatment ...

P " ,ml, of 0.02N sulfuric ,acid, used for the titration to ,pH, 8.3 T » ,ml, of ,acid, used for total titration (above ,pH, 8.3 plus ,acid, used to 4,5) There are five possible conditions: 1. P - T Hydroxide mg/1 » P x 10 2.

WATER & WASTEWATER ANALYSIS CATALOG
WATER & WASTEWATER ANALYSIS CATALOG

WATER & WASTEWATER ANALYSIS CATALOG,. 3. ACIDITY (VOLATILE)/ALKALINITY. Total Alkalinity. ... by neutralizing the sample to a ,pH, of 8 3 using a dilute hydrochloric ,acid, solution, ... HI7010M ,pH, 10 01 buffer solution (230 ,mL,), ,100 mL, beakers (2), tube set with dispensing tip, medium stir bar, ...

Picric acid | C6H3N3O7 - PubChem
Picric acid | C6H3N3O7 - PubChem

Picric acid, is a C-nitro compound comprising phenol having three nitro substtituents at the 2-, 4- and 6-positions. It has a role as an explosive, an antiseptic drug and a fixative. It derives from a 1,3,5-trinitrobenzene and a phenol.It is a conjugate ,acid, of a picrate anion.

Nitrate - Hach
Nitrate - Hach

2. Use a pipet to add 1.0, 3.0, 10 and 30.0 ,mL, of a ,100, mg/L ,nitrate,-nitrogen (NO3––N) standard solution into four different ,100,-,mL, Class A volumetric flasks. 3. Dilute to the mark with the prepared chloride water. Mix thoroughly. 4. Complete the test procedure for each of …

Wastewater Laboratory Procedures And Chemistry
Wastewater Laboratory Procedures And Chemistry

Using the formula as in example number 1 23 x 10 MPN/,100 ml, = 0.001 MPN/,100 ml, = 230,000 MPN or = 230,000 per ,100 ml, Example number 3 Dilutions No. of tubes positive out of 5 tubes set up at each dilution 0 0.1 0.01 0.001 0.0001 0.00001 In example number 3 the code 5-1-0-1 is unreasonable because probability would indicate that the 0.01 dilution should have 1 tube in 5 giving a positive result.

Iron Total - Hach
Iron Total - Hach

1. Add 5 ,mL, of 6.0 N (1:1) hydrochloric ,acid, solution to ,100 mL, of sample in a 250-,mL, Erlenmeyer flask. 2. Boil for 20 minutes. 3. Let the solution cool to room temperature. 4. Adjust the ,pH, to 3–5 with 5 N sodium hydroxide solution. 5. Add deionized water until the volume is ,100 mL,. 6. Use the treated sample in the test procedure.

Effect of pH and Initial pb(II) Concentration onThe Lead ...
Effect of pH and Initial pb(II) Concentration onThe Lead ...

) and diluting to 1000 ,ml, volume. Pb(NO 3) 2 is a colorless powder and soluble in water. The density and solubility of Lead (II) nitrate in water is 4.53 g/cm3 and 52 g/,100 mL, at 20°C, respectively. The solutions with a required concentration of Pb(II) were prepared by diluting a stock solution. Collection of samples

Chapter 7 - PHYSICAL AND CHEMICAL ANALYSES
Chapter 7 - PHYSICAL AND CHEMICAL ANALYSES

where A = volume of standard ,acid, solution (,ml,) to reach the phenolphthalein end-point of ,pH, 8.3 B = volume of standard ,acid, solution (,ml,) to reach the end-point of methyl orange or mixed indicator M = concentration of ,acid, (mol l-1) V = volume of sample (,ml,) Using ,100 ml, of sample and 0.01 mol l-1 standard ,acid, solution, the numerical value of ...

Testing Wastewater using a pH Meter
Testing Wastewater using a pH Meter

2. Just before testing, use a graduated cylinder to measure 60 ,mL, of the ,wastewater, sample into a ,100 mL, beaker. Stir the sample. (Note: Allowing ,wastewater, samples with a ,pH, greater than 7 to be exposed to carbon dioxide (CO2€) in the atmosphere can result in the formation of carbonic ,acid,, which will lower the sample’s ,pH, value—so ...

Lab 3: Alkalinity - Water/Wastewater Distance Learning at ...
Lab 3: Alkalinity - Water/Wastewater Distance Learning at ...

Clean the burette and fill almost to the top with N/50 sulfuric ,acid,. Then run some ,acid, to waste until the "zero" mark is reached. This should leave the stopcock and tip of the burette full of the solution. Measure out ,100 mL, of the water to be tested and pour into a clean white porcelain evaporating dish.

Disinfection of treated wastewater - University of Washington
Disinfection of treated wastewater - University of Washington

The ,pH, affects this reaction. Lower ,pH, drives the reaction to make HOCl. HOCl (hypochlorous ,acid,) is a more effective disinfectant than OCl--(hypochlorite ion).(hypochlorite ion). A ,pH, …

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