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patented for thermal phosphate recovery process

patented for thermal phosphate recovery process

Phosphorus recovery and recycling1.33 Мб. 55 figure 35: the patented version of the s eaborne process (modified from VFrom the phosphorus recovery point of view, it creates a phosphate rich side stream that can beThe company replaces the phosphate rock in the electro-thermal process (Section 2.5.2) with the...

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JDCPhosphate Moves to Commercialize its

2019-4-8  This patented technology uses a carbo-thermal reduction and oxidation process to recover phosphate from low-quality phosphate sources, including previously processed mine tailings.

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Perfecting the phosphorus process – MIT Department

On the other hand, the production of phosphorus containing chemicals requires the “thermal process,” an energy-intensive process that reduces the phosphate to pure white phosphorus. The white phosphorus is then treated with environmentally hazardous

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Phosphoric acid recovery from concentrated aqueous

Phosphoric acid recovery from concentrated aqueous feeds by a mixture of di-isopropyl ether ... In the thermal process, phosphorus is rst produced by reduction of the phosphate rock, followed by ... (only 5% of the total phosphoric acid was produced by thermal processes in 2007).2 In the wet process, phosphate, ores are leached with a mineral ...

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THERMAL HYDROLYSIS OF SEWAGE SLUDGE AND THE

2019-3-22  thermal hydrolysis, digestion, dewatering, centrate water treatment, ammonia recovery, phosphate recovery, struvite Introduction Treatment of domestic wastewater is an energy consuming process. On a wwtp the net energy consumption is approximately 20 – 30 kWh per year per person equivalent treated wastewater,

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US9061221B2 - Phosphate recovery from sludge -

A process for recovering reusable materials, in particular phosphate, from sewage sludge products, namely sewage sludge, sewage sludge ash or sewage sludge slag, by extraction, in which a suspension of the sewage sludge product is produced in water, alcohol, water-alcohol mixture or an aqueous solution, gaseous carbon dioxide (CO 2 ) or supercritical carbon dioxide (scCO 2 ) is introduced as ...

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Phosphorus recovery as struvite: Recent concerns for

2016-2-1  Such recovery is environmentally useful since the waste becomes suitable for safe disposal after extraction of excess nutrients (Gell et al., 2011). Woods et al. (1999) demonstrated that P recovery from sewage sludge resulted in reduction of sludge volume up to 49% when calcium phosphate recovery was used following conventional biological ...

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WASTE to ENERGY - Waterleau

2016-1-29  2 Our proprietary Waste-to-Energy technology portfolio offers a solution for thermal treatment of different types of solid, liquid and gaseous waste, allowing power and heat production from the safe incineration of industrial, medical or other

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Wastewater as a resource: Strategies to recover

2016-10-1  The extra phosphorus recovery as struvite is a consequence of the Nereda process which removes more phosphorus from the wastewater into sludge. With regard to the value pyramid this measure should definitely be considered, since the production of a higher valued products, alginic acid and struvite, only reduces a lower valued product, biogas.

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Fluor Liquefied Natural Gas (LNG) Process Proprietary ...

2021-2-28  The energy consumption for this process is very low as the cold energy in LNG is used in the fractionation process. Power Cycle with Liquefied Natural Gas Regasification: Liquefied natural gas (LNG) or components thereof are used as working fluids in power generation cycles in a LNG regasification plant.

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An environment friendly process for recovering

2015-1-28  The Budenheim Carbonic Acid Process Flow chart of the patented Budenheim Carbonic Acid Process: Sewage sludge Water CO 2 Water CO 2 CO 2 7 Phosphate- ... Percentage phosphate recovery Agitation in combination with lime water addition 13 0% 10% 20% 30% 40% 50% ... • No need for thermal or chemical treatment • Production of sustainable phosphates

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(PDF) Technology for recovery of phosphorus from

Based on the previous background Vanotti et al. (2009) developed a patented process (2010) to recover phosphate from liquid swine manure. In the treatment system (Vanotti et al., 2003;Vanotti et ...

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Phosphorus recovery // REMONDIS Sustainability

The TetraPhos® process truly is recycling at its best. It is like a puzzle piece that fits perfectly into the chain of wastewater treatment, thermal treatment and phosphorus recovery. A sustainable system that fully closes the material life cycle of phosphorus for the

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Comprehensive Recovery and Sustainable Development

2017-1-24  phosphate rock, which can be accomplished via either a thermal process or the “wet acid” process (usually referring to the manufacturing of phosphoric acid by reacting phosphate rock with sulfuric acid). Although the first wet phosphoric acid plant was built in Germany as early as 1870 and in the U.S. in 1890, manufacturing

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Process of manufacture of phosphoric acid with

3. The process of claim 1 including the step of recovering sulfuric acid used in treating the phospho-gypsum waste product and utilizing it to treat phosphate rock in the wet-acid process. 4. The process of claim 1 wherein the calcining is done in a fluidized bed reactor in the presence of silica and carbon. 5.

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(PDF) A review of biological phosphorus removal in

For example, the NEREDA ® Process [50], a patented process based on the aerobic granular sludge (AGS) formation phenomenon [51, 52] and operated according to an

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Phosphoric acid recovery from concentrated aqueous

Phosphoric acid recovery from concentrated aqueous feeds by a mixture of di-isopropyl ether (DiPE) and tri-n-butylphosphate (TBP): extraction data and modellingM. Campos Assuncao ab, G. Cote a, M. Andre a, H. Halleux b and A. Chagnes * ac a PSL Research University, Chimie ParisTech – CNRS, Institut de Recherche de Chimie Paris, 11 rue Pierre et Marie Curie, 75005 Paris, France.

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The Energy Autonomous Sewage Treatment Plant Vision

phosphorus/nitrogen recovery (LysoGest® process)* * Patented system, P.C.S. GmbH, DE expected: √ Reduced retention time required for digestion, therefore less digestor volume needed √ Remarkable phosphate/nitrogen recovery possible if a qualified process (e.g. AirPrex®** for phosphate recovery

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WASTE to ENERGY - Waterleau

2016-1-29  2 Our proprietary Waste-to-Energy technology portfolio offers a solution for thermal treatment of different types of solid, liquid and gaseous waste, allowing power and heat production from the safe incineration of industrial, medical or other

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Thermal decomposition of struvite : a novel approach

Ammonia recovery technology, utilizing newberyite (MgHPO₄.3H₂O) as a struvite (MgNH₄PO₄.6H₂O) decomposition product, is gaining interest as usage of newberyite can significantly reduce the cost of commercial reagents, by providing readily available magnesium and phosphate for struvite reformation. In this study, the efficiency of ammonia removal from struvite, and a transformation ...

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P-Recovery CNP Cycles

2021-2-12  The P-recovery is no longer a trait of pioneer wastewater treatment plants, but recently it became a legal requirement (AbfKlärV) in Germany. And other EU countries will most probably follow soon. We have developed three suitable process technologies that meet three particular requirements of the regulation. All patented or patent pending.

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Phosphorus recovery // REMONDIS Sustainability

The TetraPhos® process truly is recycling at its best. It is like a puzzle piece that fits perfectly into the chain of wastewater treatment, thermal treatment and phosphorus recovery. A sustainable system that fully closes the material life cycle of phosphorus for the

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The 3R Zero Emission Pyroylsis Phosphorus

The 3R zero emission pyrolysis is an advanced and added value recycling and reuse of un-exploited biomass for recovery of concentrated Phosphorus and natural BioPhosphate products. In a world with finite resources there is no infinite development opportunity with sustainability, unless circular economy is not fully implemented. In this context there is no one fit for all processing technology ...

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Process of manufacture of phosphoric acid with

3. The process of claim 1 including the step of recovering sulfuric acid used in treating the phospho-gypsum waste product and utilizing it to treat phosphate rock in the wet-acid process. 4. The process of claim 1 wherein the calcining is done in a fluidized bed reactor in the presence of silica and carbon. 5.

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Phosphoric acid recovery from concentrated aqueous

Phosphoric acid recovery from concentrated aqueous feeds by a mixture of di-isopropyl ether (DiPE) and tri-n-butylphosphate (TBP): extraction data and modellingM. Campos Assuncao ab, G. Cote a, M. Andre a, H. Halleux b and A. Chagnes * ac a PSL Research University, Chimie ParisTech – CNRS, Institut de Recherche de Chimie Paris, 11 rue Pierre et Marie Curie, 75005 Paris, France.

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Phosphoric Acid and phosphate-based products

2020-10-13  VICHEM’s patented wet process for the production of merchant grade phosphoric acid In the context of the diminishing availability of high-quality phosphate rock, and of its increasing price, VICHEM has developed and patented a process which provides a significant improvement on the attack process on phosphate rock by

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The Energy Autonomous Sewage Treatment Plant Vision

phosphorus/nitrogen recovery (LysoGest® process)* * Patented system, P.C.S. GmbH, DE expected: √ Reduced retention time required for digestion, therefore less digestor volume needed √ Remarkable phosphate/nitrogen recovery possible if a qualified process (e.g. AirPrex®** for phosphate recovery

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Advanced Nutrient Recovery SSWM - Find tools for ...

The PRISA process (Phosphorus Recovery by ISA) can be integrated into the sludge treatment of a municipal wastewater treatment plant (wwtp). Related to the phosphorus inflow load to the wwtp, the process enables a recovery up to 40%. The recovered phosphate can be used either in agriculture or can be sold to the phosphate industry.

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Metallurgical processes for scandium recovery from various ...

2017-2-13  Feuling (1991a) patented a process (Fig. 5) for the recovery of the scandium from a titanium chlorination residue with tri-butyl phosphate (TBP) as extractant. The residue was leached by 6 M HCl to produce a scandium-containing aqueous solution, followed by removal of the radium in the leach solution with adsorption on newly formed BaSO4.

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Process for the production of dicalcium phosphate -

The process for producing dicalcium (rtho40 phosphate comprising heating, at a temperature of about 125-400* C., monocalcium chlorophos*phate, substantially free of calcium chloriCeI in an atmosphere of steam, until decomposition to hydrochloric acid gas and solid dicalcium ortho45 phosphate is substantially complete, removing the hydrochloric ...

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