patented for thermal phosphate recovery process

patented for thermal phosphate recovery process

patented for thermal phosphate recovery process,US3382035A - Process for production of phosphoric acid - Google .Background of the invention Phosphoric acid is normally produced by the thermal decomposition of phosphate rock or by the sulphuric acid idulation of phosphate rock. . The reaction solution is filtered to remove acid insolubles and is then treated according to one of two alternative recovery processes. First, the reaction.Phosphorus recovery // REMONDIS SustainabilityOne of REMONDIS' latest developments is its patented TetraPhos process. It fits into the chain of wastewater treatment, thermal treatment and phosphorus recovery perfectly. A sustainable system that fully closes the material life cycle of phosphorus for the very first time. But that's not all: TetraPhos® not only generates.

Total Value of Phosphorus Recovery - ACS Publications - American .May 23, 2016 . ABSTRACT: Phosphorus (P) is a critical, geographically concentrated, nonrenewable resource necessary to support . benefits of recovering P from waste streams, i.e., the total value of recovering P. This approach accounts for P ... physical-chemical, thermal, and enzymatic pretreatment.59 The result is.A Technical Review of the Improved Hard Process - JDC Phosphatemuch higher silica levels in the feed formulation. This process was patented and became known as the. “Hard Process." Although pilot plant tests validated that the Hard Process produced high quality phosphoric acid the. Hard Process had lower thermal efficiencies and throughput and higher costs than desirable, offering.

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US9328006B2 - Removal and recovery of phosphate from liquid .

An economical method for recovering phosphate or phosphate and nitrogen from liquid streams. A liquid containing phosphate is introduced into a culture of autotrophic microorganisms in the presence of natural or artificial light, thereby producing a liquid effluent with elevated pH and reduced alkalinity. The alkalinity is.

patented for thermal phosphate recovery process,Phosphorus recovery // REMONDIS Sustainability

One of REMONDIS' latest developments is its patented TetraPhos process. It fits into the chain of wastewater treatment, thermal treatment and phosphorus recovery perfectly. A sustainable system that fully closes the material life cycle of phosphorus for the very first time. But that's not all: TetraPhos® not only generates.

phosphorus recovery and recycling from municipal . - SSWM

May 7, 2010 . The wet chemical methods recover the phosphorus bound in sludge or ash by leaching it with acid or base, and recovering the resulting dissolved phosphorus with various methods, the most common being the precipitation. The ash fraction after incineration can be treated with thermo-chemical methods by.

Schematic overview of the NuReSys process (modified from .

See figure: 'Schematic overview of the NuReSys process (modified from Moerman et al., 2009). ' from publication 'Global Phosphorus Scarcity and Full-Scale P-Recovery Techniques: A Review' on ResearchGate, the professional network for scientists.

A Technical Review of the Improved Hard Process - JDC Phosphate

much higher silica levels in the feed formulation. This process was patented and became known as the. “Hard Process." Although pilot plant tests validated that the Hard Process produced high quality phosphoric acid the. Hard Process had lower thermal efficiencies and throughput and higher costs than desirable, offering.

US4461913A - Production of urea phosphate - Google Patents

These processes involve thermal decomposition of urea phosphate and utilize the condensing action of urea in urea phosphate to form polyphosphates. Among those is one method described by Theobald (German Patent No. 2,308,408) who proposes a two-stage process where urea phosphate is melted in the first stage.

CNP Acquires Pre-Digestion Phosphorus Recovery Technology

Mar 24, 2017 . CNP offers a comprehensive solution for plants currently running Thermal Hydrolysis Process (THP) or Thermo-Chemical Hydrolysis Process (TCHP) to recover high side stream nitrogen or phosphorous loads. “An informal collaboration between NRU, Centrisys and CNP started in 2013,” said Menachem.

patented for thermal phosphate recovery process,Recovery of Phosphorus from Sewage Sludge and Sewage . - Cordis

Recovery of Phosphorus from Sewage Sludge and Sewage Sludge Ashes with the thermo-reductive RecoPhos-Process. From 2012-03-01 to 2015-02-28, closed project | RECOPHOS Website.

patented for thermal phosphate recovery process,US20040234441A1 - Chemical and thermal decomposition of .

Chemical and thermal decomposition of ammonium sulphate into ammonia and sulphuric acid . US3369869A * 1964-02-27 1968-02-20 Inventa Ag Process for recovering ammonia from ammonia-containing gas by means of sulfuric acid. US4990319A * 1987-09-15 . US3956464A 1976-05-11 Preparation of phosphates.

Sewage sludge as a fuel and raw material for phosphorus recovery .

Oct 30, 2017 . Increasing problems associated with sewage sludge disposal are observed nowadays. As the thermal conversion of sewage sludge (combustion, co-combustion, gasification and pyrolysis) appears to be the most promising alternative for its management, the solid residues left after gasification were.

patented for thermal phosphate recovery process,Energy surplus wastewater treatment plant with phosphorus recovery

technology for thermal disintegration of sludge, the. LysoGest® process for separate digestion of primary and secondary sludge, and the proprietary technology EloPhos® (patent pending) for phosphorus recovery from the sludge flow. SOLUTIONS. • Additional mechanical thickening of the primary sludge. • LysoTherm®.

Phosphate - Department of Energy

the marketable phosphate rock mined in the United States and process most of the refined mineral in fertilizer .. and stored before being pumped back to the furnaces for phosphorus recovery. The furnace burden .. and the electricity needed for thermal acid has encouraged the development of new processes for purifying.

patented for thermal phosphate recovery process,P-Recovery - Ecophos

The element phosphorus (P) is essential for all life on earth, from micro-organisms and plants to animals and man. . way to expand the availability of phosphorus is to find ways to economically and ecologically process the lower end of the natural phosphate rock, i.e. phosphate rock with .. The patented EcoPhos-process!

Securing resources for the future / Themes | Budenheim

Using the patented ExtraPhos®-method we re-dissolve phosphorus out of sewage sludge. Sewage sludge is a by-product of wastewater treatment and contains a large quantity of valuable phosphorus. The re-dissolution is effected by a decrease in pH value caused by adding carbon dioxide. During the process the.

review of emerging nutrient recovery . - Semantic Scholar

Nov 6, 2013 . An Advanced Bio-refinery Business Model for U.S. Dairies. A new business model has the potential to transform the U.S. (US) dairy industry. This model incorporates advanced technology to treat both dairy manure and off-farm food wastes using a core anaerobic digestion (AD) technology, with associated.

Phosphorus Removal and Recovery from Wastewater . - DiVA portal

Recovering of magnetite is also possible, but for its reuse additional renovation stage is needed. It was concluded that . and investment costs. Key words: phosphorus, removal, recycling, wastewater treatment, magnetite. .. c) Solubilization of sludge parts using chemical, biological and/or thermal methods. This results in.

review of emerging nutrient recovery . - Semantic Scholar

Nov 6, 2013 . An Advanced Bio-refinery Business Model for U.S. Dairies. A new business model has the potential to transform the U.S. (US) dairy industry. This model incorporates advanced technology to treat both dairy manure and off-farm food wastes using a core anaerobic digestion (AD) technology, with associated.

The 3R Technology | 3R Agrocarbon

Dec 1, 2017 . As a result, the 3R zero emission carbon processing, phosphorus recovery and biochar products open new technical, economical, environmental and climate solution . The 3R pyrolysis process is a patented original solution and industrial design, its development is priority supported by the EU since 2002.

Veolia Water Technologies North America | Biosolids & Bioenergy

Low operating temperatures allow the process to utilize a variety of waste heat sources, such as the easily added BioCon Energy Recovery System (ERS), . Efficient Phosphorus Recovery . This Veolia process uses a patented mixing system, TurboMix™, to produce and separate struvite crystals within a single reactor.

Processes for the manufacture of feed-grade dicalcium phosphate .

Oct 26, 1976 . The invention relates to a combined process for the manufacture of feed grade dicalcium phosphate and pure phosphoric acid. . View Patent Images: ... d) with aqueous hydrochloric acid or gases containing hydrogen chloride such as are obtained in the thermal decomposition of metal chloride solutions.

Electrostatic beneficiation of phosphate ores - ST Equipment .

chemical reagents typically used in phosphate flotation to obtain high phosphate grade and recovery. He specifically mentions the effectiveness of fuel oil and fatty acids as reagents. Figure 1, Johnson process apparatus and flow sheet US Patent 2,135,716 and 2,197,865, 1940 [1][2]. While this commercial installation is.

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