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

Sulfate removal from acid mine 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.

Certificate of Honor

Get in touch with us

We will confidentially process your data and will not pass it on to a third party.

Sulfate removal from acid mine wastewater
Chemical Fertiliser - an overview | ScienceDirect Topics
Chemical Fertiliser - an overview | ScienceDirect Topics

Jonathan W.C. Wong PhD, in Sustainable Resource ,Recovery, and Zero Waste Approaches, 2019 Agriculture and Economic Benefits of Compost The application of chemical fertilizers can increase the crop yields quickly, but they also could cause soil hardening and decrease soil organic matter and pH after a long period of application, resulting in loss of soil productivity [55] .

Technologies for biological removal and recovery of ...
Technologies for biological removal and recovery of ...

1/11/2020, · High concentration of ,nitrate, is also discharged from certain industries including stainless steel pickling rinse ,wastewater, (450 mg L-1), ,fertilizer, industry (950 mg L-1), liquid-liquid extraction process of uranium ,nitrate, raffinate (up to 77,000 mg L-1) (Fernández-Nava et al., 2008; Zala et al., 2004; Biradar et al., 2008).

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 ...

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 ...

Lecture 2-8-11-2014 - SlideShare
Lecture 2-8-11-2014 - SlideShare

C) Effluents - ,Compound Fertilizer, Production: Effluent from NPK facilities employing the nitrophosphate route may contain ammonia, ,nitrate,, fluoride and phosphate. Ammonia is found in the effluents of the condensates of the ammonium ,nitrate, evaporation or the neutralization of the nitro phosphoric ,acid, …

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.

Turfgrass Fertilization: A Basic Guide for Professional ...
Turfgrass Fertilization: A Basic Guide for Professional ...

One of these bacteria, Nitrosomonas spp., transforms ammonium to an intermediate nitrogen ,compound, called nitrite, while the other (Nitrobacter spp.) converts nitrite to ,nitrate,. Nitrification inhibitors are designed to specifically target Nitrosomonas bacteria so that the nitrogen ,fertilizer, remains in the more stable ammonium form.

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

Mixed Fertilizer Plants - IFC
Mixed Fertilizer Plants - IFC

follow. The calcium ,nitrate, filter cake can be fur-ther treated to produce a calcium ,nitrate fertil-izer,, pure calcium ,nitrate,, or ammonium ,nitrate, and calcium carbonate. Nitrophosphate fertiliz-ers are also produced by the mixed-,acid, process, through digestion of the phosphate rock by a mixture of nitric and phosphoric acids.

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 ...

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 …

Treatment of wastewaters from phosphate fertilizer ...
Treatment of wastewaters from phosphate fertilizer ...

The phosphate (P) ,fertilizer, industry generates a highly hazardous and acidic ,wastewater,. The present study reports the evaluation of an integrated precipitation and Enhanced Biological Phosphorus Removal (EBPR) process for the treatment of ,fertilizer, plant ,wastewater, and effluent detoxification, assessed by microtoxicity and seed germination tests. Effluent samples were collected from a local ...

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 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 …

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.

Fertilizer - Wikipedia
Fertilizer - Wikipedia

A ,fertilizer, (American English) or fertiliser (British English; see spelling differences) is any material of natural or synthetic origin that is applied to soil or to plant tissues to supply plant nutrients.Fertilizers may be distinct from liming materials or other non-nutrient soil amendments.Many sources of ,fertilizer, exist, both natural and industrially produced.

Nitrate Control Technical Progress in Water Treatment
Nitrate Control Technical Progress in Water Treatment

Nitrate, Control Technical Progress in Water Treatment Lei Fang2, Qi Zhu*1 1School of Chemistry and Material Sciences, Heilongjiang University, Harbin, China 2College of Life and Chemistry, Harbin University,Harbin, Chinace Abstract. Leaching of ,nitrate compound, ground runoff loss and nitrogen element, resulting in the pollution of groundwater.

Sodium nitrate | NaNO3 - PubChem
Sodium nitrate | NaNO3 - PubChem

Nitrate, is concentrated in saliva, where a part of it is reduced to nitrite by bacterial ,nitrate, reductases. /The authors/ tested if ingestion of inorganic ,nitrate, would affect the salivary and systemic levels of nitrite and S-nitrosothiols, both considered to be circulating storage pools for NO. Levels of ,nitrate,, nitrite, and S-nitrosothiols were measured in plasma, saliva, and urine before ...

Ammonium nitrate | NH4NO3 - PubChem
Ammonium nitrate | NH4NO3 - PubChem

Ammonium nitrate, is the ammonium salt of nitric ,acid,. It has a role as a ,fertilizer,, an explosive and an oxidising agent. ... Within 3 yr, porous prilled ,ammonium nitrate,, a product of the ,fertilizer, industry, ... Method 4500-,Nitrate, Ion E. Cadmium Reduction Method for the determination of ,nitrate, nitrogen in water and ,wastewater,.

Recent advances in removing phosphorus from wastewater and ...
Recent advances in removing phosphorus from wastewater and ...

Although several methods for mobilization of non-soluble phosphorus (Fe-and Al-P in ,acid, soils, Ca-P in alkaline soils) are documented, the most common is by production of organic acids and release of protons by the microbes (Jones, 1998).We propose that precipitated phosphate recovered from ,wastewater,, together with common PSB and PSF, be used as a ,fertilizer,.

Chat Online Inquiry Email

Business cooperation

+86 513525609655

Company address

Road West, North Branch, Jingkai Road, Puyang City