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Treatment of acid wastewater containing dichromate with jarosite

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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Treatment of acid wastewater containing dichromate with jarosite
(PDF) Nutrient recovery from wastewater and reuse in ...
(PDF) Nutrient recovery from wastewater and reuse in ...

Many effective strategies have been developed for nutrient recovery from ,wastewater,. The reuse potential of the recovered nutrient as ,fertilizer, is often based on postulations.

Research Article Development of a Technology for Treating ...
Research Article Development of a Technology for Treating ...

the production of aromatic nitro compound, the acidic wastewater contains small amounts of solid particles, which if passed to the neutralization stage, it would jeopardize the process, resulting in the occurrence of violent reaction with high heat release. A sedimentation- ltration system was used for purifying the acidic wastewater. In the settling

Exploration and verification of the feasibility of sulfide ...
Exploration and verification of the feasibility of sulfide ...

1/4/2021, · 1. Introduction. Anaerobic ammonium oxidation (anammox) is a promising biotechnological process of nitrogen removal that can directly convert ammonium and nitrite to nitrogen gas under anoxic conditions (Van de Graaf et al., 1996).The nitrite supply for anammox can be derived via partial nitrification (NH 4 + → NO 2 −) in a process known as combined partial nitrification and anammox.

Wastewater treatment and reclamation: A review of pulp and ...
Wastewater treatment and reclamation: A review of pulp and ...

Full Article. ,Wastewater Treatment and Reclamation: A, Review of Pulp and ,Paper Industry Practices and Opportunities,. Martin A. Hubbe,*,a Jeremy R. Metts, a,b Daphne Hermosilla, c M. Angeles Blanco, d Laleh Yerushalmi, e Fariborz Haghighat, e Petra Lindholm-Lehto, f Zahra Khodaparast, g Mohammadreza Kamali, h and Allan Elliott i The pulp and paper (P&P) industry worldwide has achieved ...

Treatment of Effluents of Fertilizer Industry ...
Treatment of Effluents of Fertilizer Industry ...

In the first few vessels, the reaction products – calcium ,nitrate, and phosphoric or sulphuric ,acid, is added together with ammonia to produce a specific mix of calcium compounds, ammonium ,nitrate, and phosphoric ,acid,. This then converted into a dry product. Sources, Volume and Characteristics of …

(PDF) Removal of nitrates from highly-contaminated ...
(PDF) Removal of nitrates from highly-contaminated ...

tartaric ,acid,, citric ,acid, and phosphoric ,acid, [33]. The reagent, dissolved in 5% acetic ,acid, (1 g of nitron in 10 mL ,of acid,), is stored in a dark bottle until use, as the solution decomposes

Frontiers | A Review of Phosphorus Removal Technologies ...
Frontiers | A Review of Phosphorus Removal Technologies ...

The removal of phosphorus (P) from ,domestic wastewater, is primarily to reduce the potential for eutrophication in receiving waters, and is mandated and common in many countries. However, most P-removal technologies have been developed for use at larger ,wastewater treatment, plants that have economies-of-scale, rigorous monitoring, and in-house operating expertise.

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.

Biochar technology in wastewater treatment: A critical ...
Biochar technology in wastewater treatment: A critical ...

1/8/2020, · Biochar is a promising agent for ,wastewater treatment,, soil remediation, and gas storage and separation. This review summarizes recent research development on biochar production and applications with a focus on the application of ,biochar technology in wastewater treatment,.

Water Handbook - Aeration | SUEZ
Water Handbook - Aeration | SUEZ

Aeration is often used to reduce the carbon dioxide liberated by a ,treatment, process. For example, ,acid, may be fed to the effluent of sodium zeolite softeners for boiler alkalinity control. Carbon dioxide is produced as a result of the ,acid treatment,, and aeration is employed to rid the water of this corrosive gas.

Recovery of ammonia from domestic wastewater effluents as ...
Recovery of ammonia from domestic wastewater effluents as ...

15/4/2017, · Trials with nitric and phosphoric, acids, in hollow fibre membrane contactors demonstrated a total, nitrogen recovery, capacity above 95% if an excess of free, acid, is present in the stripping stream. This solution avoids the use of low cost common, acids, (e.g., H 2 SO 4 and HCl) as ammonia collectors, providing rich ammonium, nitrate, and di-ammonium phosphate with high added value as, fertilizers.

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.

Nitrogen and Phosphorus Harvesting from Human Urine Using ...
Nitrogen and Phosphorus Harvesting from Human Urine Using ...

Bioelectrochemical Ammoniation Coupled with Microbial Electrolysis for Nitrogen ,Recovery from Nitrate, in ,Wastewater,. Environmental Science & Technology 2020, 54 (5) , 3002-3011.

AMMONIA RECOVERY FROM DIGESTED DAIRY MANURE AS …
AMMONIA RECOVERY FROM DIGESTED DAIRY MANURE AS …

wastewater, BNR process, includes the entire process of oxidation of ammonia to ,nitrate, (reactions 1-2) and reduction of ,nitrate, to nitrogen gas (reactions 3-4). It has been studied for ammonia removal from animal ,wastewater, at full scale without anaerobic digestion

Research Article Development of a Technology for Treating ...
Research Article Development of a Technology for Treating ...

the production of aromatic nitro ,compound,, the acidic ,wastewater, contains small amounts of solid particles, which if passed to the neutralization stage, it would jeopardize the process, resulting in the occurrence of violent reaction with high heat release. A sedimentation- ltration system was used for purifying the acidic ,wastewater,. In the settling

Recovery of Ammonium and Phosphate from Wastewater by ...
Recovery of Ammonium and Phosphate from Wastewater by ...

To minimize the negative impact of, nitrogen and, phosphorus pollution from, wastewater and, improve, fertilizer, use efficiency, a novel multifunctional slow-release, compound fertilizer, was prepared by, recovery, of NH4+ and H2PO4– from aqueous solutions …

Nitrogen recovery from wastewater and human urine with ...
Nitrogen recovery from wastewater and human urine with ...

15/3/2019, · Continuous flow laboratory membrane reactor was built to investigate nitrogen recovery from ,wastewater, and from human urine. Membrane gas separation method has not been investigated for ammonia recovery from human urine yet. Nitrogen as ammonia gas was recovered in ,acid, using Zeus Aeos™ ePTFE gas-permeable hydrophobic membrane.

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.

Treatment of Effluents of Fertilizer Industry ...
Treatment of Effluents of Fertilizer Industry ...

In the first few vessels, the reaction products – calcium ,nitrate, and phosphoric or sulphuric ,acid, is added together with ammonia to produce a specific mix of calcium compounds, ammonium ,nitrate, and phosphoric ,acid,. This then converted into a dry product. Sources, Volume and Characteristics of …

From removal to recovery: An evaluation of nitrogen ...
From removal to recovery: An evaluation of nitrogen ...

1/4/2020, · The most efficient methods of, nitrogen recovery, were MEC-FO and liquid-liquid membrane contactors for reject water (99.7%, 96.5% respectively), struvite precipitation with LSSA for digestate (92%), sludge, fermentation, (73%), vacuum membrane distillation for, wastewater, (99.6%, 96%) and stripping/acid absorption for urine (94%).

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