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acidification fracturing flow-back fluids separation process

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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acidification fracturing flow-back fluids separation process
Precipitation Coagulation and flocculation
Precipitation Coagulation and flocculation

• ,Used, in water treatment to remove substancesthat formnon-soluble or non-settelable formswith the ,precipitant,. • Quite often ,precipitation, coagulation and flocculation, are ,used, interchangeably ... are with ionic strength I = ,0,) • General rules: • Phosphate and carbonate salts are insoluble • …

8.2: Precipitation Gravimetry - Chemistry LibreTexts
8.2: Precipitation Gravimetry - Chemistry LibreTexts

In Beaker A, combining ,0,.,1, M Pb(NO 3) 2 and ,0,.,1, M K 2 CrO 4 forms the precipitate under conditions of high RSS. The precipitate forms rapidly and consists of very small particles. In Beaker B, heating a solution of ,0,.,1, M Pb(NO 3 ) 2 , ,0,.,1, M Cr(NO 3 ) 3 , and ,0,.,1, M KBrO 3 slowly oxidizes Cr 3 + to CrO 4 2– , precipitating PbCrO 4 under conditions of low RSS .

Phosphate Precipitation with Ferrous Iron
Phosphate Precipitation with Ferrous Iron

The effects of pH and reactant concentration on the effi- ciency of reactant removal were evaluated. In the absence of dissolved oxygen and for initial conditions of 1Z mg/,1, P and a reactant equivalence ratio of ,1,.,0,, orthophosphate removal was maximum (97%) at a pH of 8.,0,. The precipitate formed was identified as vivianite, Fe3(PO4)2-8HZO.

Industrial Wastewater Treatment - Removing Metals Bonded ...
Industrial Wastewater Treatment - Removing Metals Bonded ...

1/7/2015, · Option ,1,: Acidify it with dilute sulfuric ,acid,, bringing it to a pH of ,1,.5 - 2.5, and then agitate it for 24 to 48 hours. After this time, the solution can be bled into the ,wastewater, stream gradually and treated without requiring metal ,precipitant,. Keep in mind that Jar Testing should be performed to determine: ,1,.

Precipitation Reaction - Examples & Definition ...
Precipitation Reaction - Examples & Definition ...

Precipitation, reaction can be ,used, in ,wastewater, treatment. When a contaminant forms an insoluble solid, then we can use this reaction to precipitate out the contaminated ions. In ,wastewater,, a frequent presence of heavy metals can be found such as compounds of sulphide and hydroxide.

Calcium Phosphate Precipitation in Wastewater Treatment
Calcium Phosphate Precipitation in Wastewater Treatment

----- TABLE 8 OPERATING CONDITIONS AND RESULTS FOR ,WASTEWATER, EXPERIMENT I Sample Location Primary Effluent Activated Sludge Effluent Lime Precipitation Effluent Recarbonation Effluent Clinoptilolite Effluent P Total roM ,0,.37 ,0,.36 ,0,.017 Dissolved raM ,0,.31 ,0,.30 ,0,.00389 ,0,.016 ,0,.016 Ca Dissolved mM ,1,.38 ,1,.39 ,1,.93 - ,1,.72 Mg Dissolved mM ,0,.37 ,0,.37 ,0,.26 ,0,.26 ,0,.25 CT Dissolved mM - ,1,.97 ,0,…

Precipitation Coagulation and flocculation
Precipitation Coagulation and flocculation

• ,Used, in water treatment to remove substancesthat formnon-soluble or non-settelable formswith the ,precipitant,. • Quite often ,precipitation, coagulation and flocculation, are ,used, interchangeably ... are with ionic strength I = ,0,) • General rules: • Phosphate and carbonate salts are insoluble • …

Comparing Common Metal Precipitating Agents: A Close Look ...
Comparing Common Metal Precipitating Agents: A Close Look ...

the ,acid, is reacted with either an earth metal, such as sodium, potassium, or calcium, or a transition metal, such as copper, nickel, or zinc. Group 1A earth metal salts of dithiocarbamates have the basic chemical structure shown in Figure ,1,. Figure ,1,: Discrete (single dithiocarbamate functional group, non-polymeric) Dithiocarbamate Structure ...

Ferric and Aluminium Salts - water tech - enviro ... - ACAT
Ferric and Aluminium Salts - water tech - enviro ... - ACAT

the specific ,precipitant, demand FMB for ß = ,1, is shown in the following table or can be calculated as follows: Iron salts: ,1,.8 g Fe / g Pf (active substance in the ,precipitant,) FMB = ,1,.8 / content ,precipitant, kg / kg Pf. Aluminium salts . ,0,.87 g Al / g Pf (active substance in the ,precipitant,) FMB = ,0,.87 / kg content ,precipitant, / kg Pf

Industrial Wastewater Treatment - Removing Metals Bonded ...
Industrial Wastewater Treatment - Removing Metals Bonded ...

1/7/2015, · Option ,1,: Acidify it with dilute sulfuric ,acid,, bringing it to a pH of ,1,.5 - 2.5, and then agitate it for 24 to 48 hours. After this time, the solution can be bled into the ,wastewater, stream gradually and treated without requiring metal ,precipitant,. Keep in mind that Jar Testing should be performed to determine: ,1,.

Comparing Common Metal Precipitating Agents: A Close Look ...
Comparing Common Metal Precipitating Agents: A Close Look ...

the ,acid, is reacted with either an earth metal, such as sodium, potassium, or calcium, or a transition metal, such as copper, nickel, or zinc. Group 1A earth metal salts of dithiocarbamates have the basic chemical structure shown in Figure ,1,. Figure ,1,: Discrete (single dithiocarbamate functional group, non-polymeric) Dithiocarbamate Structure ...

Ferric chloride or sulphate vs. ferrous chloride/sulphate
Ferric chloride or sulphate vs. ferrous chloride/sulphate

2/3/2009, · Whether ferrous or ferric, and whether chloride or sulphate, the basic purpose of these iron chemicals in industrial ,wastewater, treatment is as a co-,precipitant,. In many cases iron is unregulated in the effluent and can be ,used, to drive some copper (or other heavy metal) out …

Phosphate Precipitation with Ferrous Iron
Phosphate Precipitation with Ferrous Iron

The effects of pH and reactant concentration on the effi- ciency of reactant removal were evaluated. In the absence of dissolved oxygen and for initial conditions of 1Z mg/,1, P and a reactant equivalence ratio of ,1,.,0,, orthophosphate removal was maximum (97%) at a pH of 8.,0,. The precipitate formed was identified as vivianite, Fe3(PO4)2-8HZO.

Bittern (salt) - Wikipedia
Bittern (salt) - Wikipedia

Bittern, (pl. bitterns), or nigari, is the salt solution formed when halite (table salt) precipitates from seawater or brines.Bitterns contain magnesium, calcium, and potassium ions as well as chloride, sulfate, iodide, and other ions.. ,Bittern, is commonly formed in salt ponds where the evaporation of water prompts the precipitation of halite. These salt ponds can be part of a salt-producing ...

Bittern (salt) - Wikipedia
Bittern (salt) - Wikipedia

Bittern, (pl. bitterns), or nigari, is the salt solution formed when halite (table salt) precipitates from seawater or brines.Bitterns contain magnesium, calcium, and potassium ions as well as chloride, sulfate, iodide, and other ions.. ,Bittern, is commonly formed in salt ponds where the evaporation of water prompts the precipitation of halite. These salt ponds can be part of a salt-producing ...

Wastewater Recycling at a Steel Plating Mill-
Wastewater Recycling at a Steel Plating Mill-

Raw ,wastewater, was collected in the 3,780 L (1000 gallon) equalization and holding tank and then fed at a constant rate of 3.8 LPM (,1,.,0, GPM) to the first reaction tank of the pilot system. Sodium Aluminate Coagulant was also fed volumetrically to this tank to maintain a dose of about 50 ppm per the manufacturer’s recommendation.

Precipitation Reaction - Examples & Definition ...
Precipitation Reaction - Examples & Definition ...

Precipitation, reaction can be ,used, in ,wastewater, treatment. When a contaminant forms an insoluble solid, then we can use this reaction to precipitate out the contaminated ions. In ,wastewater,, a frequent presence of heavy metals can be found such as compounds of sulphide and hydroxide.

Ferric chloride or sulphate vs. ferrous chloride/sulphate
Ferric chloride or sulphate vs. ferrous chloride/sulphate

2/3/2009, · Whether ferrous or ferric, and whether chloride or sulphate, the basic purpose of these iron chemicals in industrial ,wastewater, treatment is as a co-,precipitant,. In many cases iron is unregulated in the effluent and can be ,used, to drive some copper (or other heavy metal) out …

Wastewater Recycling at a Steel Plating Mill-
Wastewater Recycling at a Steel Plating Mill-

Raw ,wastewater, was collected in the 3,780 L (1000 gallon) equalization and holding tank and then fed at a constant rate of 3.8 LPM (,1,.,0, GPM) to the first reaction tank of the pilot system. Sodium Aluminate Coagulant was also fed volumetrically to this tank to maintain a dose of about 50 ppm per the manufacturer’s recommendation.

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