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18 acid wastewater

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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18 acid wastewater
Phosphorus Reclamation by End-of-pipe Recovery as Calcium ...
Phosphorus Reclamation by End-of-pipe Recovery as Calcium ...

dissolved inorganic carbon (DIC) in the ,wastewater, and makes calcium available for calcium phosphate precipitation [8]. From reaction (3) it is also obvious that the ratio of DIC (bicarbonate) removed over ammonium nitrified to ,nitrate, is two. -+NH 4 + 2 O 2 → NO 3 + H 2 O + 2 H+ (1) 2 HCO 3-++ 2 H → 2 H 2 CO 3 → 2 H 2 O + 2 CO

FEASIBILITY OF ELECTROLYSIS IN NUTRIENT RECOVERY
FEASIBILITY OF ELECTROLYSIS IN NUTRIENT RECOVERY

-N), ionic species: ,nitrate, and nitrite, and nitrogen gas. One more nitroge-nous ,compound,, which can be found from ,wastewater, is urea. Urea is formed in the liver as a result of de-amination of amino acids. (PubChem, 2017). Nitrogen cycle is a process, where nitrogen is changed from one form to another and

Optimization and Quality Assessment of Fertilizers Based ...
Optimization and Quality Assessment of Fertilizers Based ...

recovery,-based fertilizers. The public image of further treated resource ,recovery,-based fertilizers should still be studied. The experimental part of this thesis was performed in Viikinmäki ,wastewater, treatment plant with the NPHarvest pilot reactor. The pretreatment of the process produces sludge and the membrane reactor produces ammonium sulfate.

Recovery of Ammonium Salt from Nitrate-Containing Water by ...
Recovery of Ammonium Salt from Nitrate-Containing Water by ...

Nitrate, Reduction & ,Recovery, by NZVI and Membrane Contactor ume, the membrane length, and the feed velocity in the module, respectively. Eq. (1) was derived from mass balances of the mod - ule and the ammonia solution, assuming that the ,acid, reservoir is big enough to neutralize all the ammonia. 3. Results and Discussion 3.1.

* Nitrate (Environment) - Definition - Online Encyclopedia
* Nitrate (Environment) - Definition - Online Encyclopedia

nitrate, - Sources of ,nitrate, in water (particularly groundwater) include decaying plant or animal material, agricultural fertilizers, manure or domestic waste. As nitrates are very soluble and, therefore, highly mobile in soil, they can readily migrate to the water table. ,Nitrate, Formed when ammonia is degraded by microorganisms in soil or groundwater.

Review on biological wastewater treatment and resources ...
Review on biological wastewater treatment and resources ...

Recovery of nutrients or resources from biosolids and liquid effluents in the field of wastewater treatment has paved the way for utilities to better manage sewage and optimize treatment operations. For example, N and P are the bio-essential macronutrients that are used as fertilizers for agricultural purposes, and may be recovered from wastewater treatment.

FEASIBILITY OF ELECTROLYSIS IN NUTRIENT RECOVERY
FEASIBILITY OF ELECTROLYSIS IN NUTRIENT RECOVERY

-N), ionic species: ,nitrate, and nitrite, and nitrogen gas. One more nitroge-nous ,compound,, which can be found from ,wastewater, is urea. Urea is formed in the liver as a result of de-amination of amino acids. (PubChem, 2017). Nitrogen cycle is a process, where nitrogen is changed from one form to another and

Treatment and Recovery of Fluoride and Nitrate Industrial ...
Treatment and Recovery of Fluoride and Nitrate Industrial ...

Evaporation Level - 75% . Steam Cost - $6.60/1,000 kg of steam ($3.00/1,000 lb of steam) . Annual Steam Cost - $l,OSO/year. The evaporator distillate contains less than 5 ppm (N) and is recycled or discharged. The evaporator bottoms are sold as calcium ,nitrate fertilizer, for $0. 33/kg of solids ($300/ton of solids) to give the following net gain: .

Developing a Vacuum Distillation- Acid Absorption System ...
Developing a Vacuum Distillation- Acid Absorption System ...

Orthophosphate, ammonium, and magnesium in the manure filtrate (liquid portion) could be recovered as a ,compound fertilizer,, magnesium ammonium phosphate hexahydrate, commonly known as struvite (Huchzermeier and Tao, 2012). Even with more than 95% of phosphorus removal, struvite ,recovery, removes only 15% of total ammonia in the manure filtrate.

Simultaneous Removal of Pollutants and Recovery of ...
Simultaneous Removal of Pollutants and Recovery of ...

In this study, a novel treatment approach combining biological treatment, struvite crystallization, and electrochemical treatment was developed and its efficiency for the ,simultaneous removal of pollutants and recovery of nutrients, from high strength swine ,wastewater, (SWW) was verified. For all the parameters, maximum removal efficiencies in the lab-scale test were obtained in the range of 93 ...

Treatment and Recovery of Fluoride and Nitrate Industrial ...
Treatment and Recovery of Fluoride and Nitrate Industrial ...

Evaporation Level - 75% . Steam Cost - $6.60/1,000 kg of steam ($3.00/1,000 lb of steam) . Annual Steam Cost - $l,OSO/year. The evaporator distillate contains less than 5 ppm (N) and is recycled or discharged. The evaporator bottoms are sold as calcium ,nitrate fertilizer, for $0. 33/kg of solids ($300/ton of solids) to give the following net gain: .

Treatment of Antibiotics in Wastewater Using Advanced ...
Treatment of Antibiotics in Wastewater Using Advanced ...

26/4/2016, · Antibiotics are nonbiodegradable, can survive at aquatic environments for long periods and they have a big potential bio-accumulation in the environment. They are extensively metabolized by humans, animals and plants. After metabolization, antibiotics or their metabolites are excreted into the aquatic environment. Removal of these compounds from the aquatic environment is feasible by …

FEASIBILITY OF ELECTROLYSIS IN NUTRIENT RECOVERY
FEASIBILITY OF ELECTROLYSIS IN NUTRIENT RECOVERY

-N), ionic species: ,nitrate, and nitrite, and nitrogen gas. One more nitroge-nous ,compound,, which can be found from ,wastewater, is urea. Urea is formed in the liver as a result of de-amination of amino acids. (PubChem, 2017). Nitrogen cycle is a process, where nitrogen is changed from one form to another and

Developing a Vacuum Distillation- Acid Absorption System ...
Developing a Vacuum Distillation- Acid Absorption System ...

Orthophosphate, ammonium, and magnesium in the manure filtrate (liquid portion) could be recovered as a ,compound fertilizer,, magnesium ammonium phosphate hexahydrate, commonly known as struvite (Huchzermeier and Tao, 2012). Even with more than 95% of phosphorus removal, struvite ,recovery, removes only 15% of total ammonia in the manure filtrate.

Optimization and Quality Assessment of Fertilizers Based ...
Optimization and Quality Assessment of Fertilizers Based ...

recovery,-based fertilizers. The public image of further treated resource ,recovery,-based fertilizers should still be studied. The experimental part of this thesis was performed in Viikinmäki ,wastewater, treatment plant with the NPHarvest pilot reactor. The pretreatment of the process produces sludge and the membrane reactor produces ammonium sulfate.

Phosphorus Reclamation by End-of-pipe Recovery as Calcium ...
Phosphorus Reclamation by End-of-pipe Recovery as Calcium ...

dissolved inorganic carbon (DIC) in the ,wastewater, and makes calcium available for calcium phosphate precipitation [8]. From reaction (3) it is also obvious that the ratio of DIC (bicarbonate) removed over ammonium nitrified to ,nitrate, is two. -+NH 4 + 2 O 2 → NO 3 + H 2 O + 2 H+ (1) 2 HCO 3-++ 2 H → 2 H 2 CO 3 → 2 H 2 O + 2 CO

Boron recovery from high boron containing wastewater using ...
Boron recovery from high boron containing wastewater using ...

Boron removal Boron ,recovery, Polarizer manufacturing ,wastewater, Introduction Boron compounds are widely used as raw materials in glass, detergent, and ,fertilizer, manufacturing processes (Schubert 2003). Recently, a large amount of boric ,acid, is used as a complex ,compound, with iodide in polarizer manufacturing process (Robinson et al. 2005). The ...

Recovery of Ammonium Salt from Nitrate-Containing Water by ...
Recovery of Ammonium Salt from Nitrate-Containing Water by ...

Nitrate, Reduction & ,Recovery, by NZVI and Membrane Contactor ume, the membrane length, and the feed velocity in the module, respectively. Eq. (1) was derived from mass balances of the mod - ule and the ammonia solution, assuming that the ,acid, reservoir is big enough to neutralize all the ammonia. 3. Results and Discussion 3.1.

Review on biological wastewater treatment and resources ...
Review on biological wastewater treatment and resources ...

Recovery of nutrients or resources from biosolids and liquid effluents in the field of wastewater treatment has paved the way for utilities to better manage sewage and optimize treatment operations. For example, N and P are the bio-essential macronutrients that are used as fertilizers for agricultural purposes, and may be recovered from wastewater treatment.

Simultaneous Removal of Pollutants and Recovery of ...
Simultaneous Removal of Pollutants and Recovery of ...

In this study, a novel treatment approach combining biological treatment, struvite crystallization, and electrochemical treatment was developed and its efficiency for the ,simultaneous removal of pollutants and recovery of nutrients, from high strength swine ,wastewater, (SWW) was verified. For all the parameters, maximum removal efficiencies in the lab-scale test were obtained in the range of 93 ...

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