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 reduced through the consumption of bicarbonate/carbonate by the ...
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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 reduced through the consumption of bicarbonate/carbonate by the ...
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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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Unique equipment offerings, such as a patented tallow recovery process, can help turn waste to value. Specialty Beverages Water is our specialty, so let Kurita America help achieve quality standards with our industry-leading ability to engineer and manufacture equipment solutions …
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Processes of extracting lithium from Argentine salt mines. In this process phosphoric acid is recovered by treatment of hydroxyapatite with sulfuric acid, with formation of hydrated calcium sulphate (gypsum) that has applications for construction: Ca 5 (PO 4) 3 .OH + 5H 2 SO 4 → 5CaSO 4 .2H 2 O + H 3 PO 4.
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Silica / Phosphate 5500sc Silica or Phosphate Analyzer ... power production process. • Patented thermal conductivity (TC) sensor • Continuous measurements ... • Complete ATP recovery, differentiating living biomass from non-living • Complies with ASTM D4012-81
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Sep 01, 2017· Sewage sludge was hydrothermally treated using either wet oxidation or thermal hydrolysis. The effects of pH, magnesium ion dosage, and hydrothermal process type on phosphate recovery were investigated, and these parameters were modelled using response surface methodology (RSM), to capture both individual and interrelated effects.
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patented for thermal phosphate recovery process SusPhos, sustainable use of phosphate from waste . The patented SusPhos process is a robust process that can produce a variety of market known, high-quality phosphate products.
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The leading provider of heat treatment and specialist thermal processing services worldwide Heat treatment encompasses a variety of techniques and specialist engineering processes which improve the properties of metals and alloys and extend the life of components and is a vital part of any manufacturing process.
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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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Jun 08, 2021· The large scale of pollution requires solutions that are efficient and effective while meeting economic and engineering considerations. We report the Phosphate Elimination and Recovery Lightweight (PEARL) membrane, a nanocomposite that can be used to selectively and repeatably recover phosphate at will from contaminated waters. The PEARL membrane is made through a scalable, aqueous process.
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Jan 01, 2014· Improving Phosphate Recovery in the Mining Process The overall recovery of phosphate reserve in the mining process is within the low 80 percent range at its best worldwide. Some of this recovery loss is due to selective mining to bypass the difficult-to-process portions, but the majority is caused by the lack of instant information on the ...
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The patented ExtraPhos processes uses carbon dioxide to lower the pH of sewage sludge and re-dissolve phosphate. The product is a phosphate fertiliser suitable for agricultural use. The only raw product used is carbon dioxide, which can be recycled. No additional thermal energy is needed.
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However, since 1950, the wet acid process has quickly overtaken the thermal method as the primary technology for manufacturing phosphoric acid. As is shown in Table 1, today only about 5% of the world phosphate rock is consumed by the thermal process. Table 1. World phosphate …
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Jan 01, 2016· Thermal utilization of sewage sludge and ash origin play a key role for final ash properties introduced to the recovery process. The technologies for phosphorus recovery from SSA must take into account the industrial procedures of sewage treatment plants in Poland, where phosphorus is removed during biological or chemical treatment with iron or ...
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A new process for the thermal disintegration of sludge is being ... cess, a patented system for the thermal disintegration of organ - ic sludges. The aim of this process: improvement of the anaer- ... phosphate recovery and at the same time aids MAP deposition
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Jun 20, 2019· Economic and energy feasibility of phosphate recovery from aerobic sludge. The main economic obstacle for phosphate recovery through struvite or calcium phosphate precipitation processes is usually the operating cost of the reaction (Egle et al., 2016), dependent mainly on the quality and quantity of chemicals required to be added to the system.
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Abstract. A process for rendering actinide values recoverable from sodium carbonate scrub waste solutions containing these and other values along with organic compounds resulting from the radiolytic and hydrolytic degradation of neutral organophosphorous extractants such as tri-n butyl phosphate (TBP) and dihexyl-N,N-diethyl carbamylmethylene phosphonate (DHDECAMP) which have been used …
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This is how AirPrex ® works:. The AirPrex ® process improves biological phosphate elimination. The digested sludge is fed into the AirPrex ® reactor where it is subjected to CO2 stripping through aeration. The CO2 increases the pH of the sludge significantly. At the same time, the addition of magnesium salts leads to the formation and precipitation of magnesium-ammonium-phosphate (MAP).
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patented for thermal phosphate recovery … patented for thermal phosphate recovery process. ... patented for thermal phosphate recovery process ... Lowgrade phosphate rock reacts with HCl in Module 1A. Get Price
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New processes and equipment are disclosed for producing elemental phosphorus and thermal phosphoric acid. Benefits are listed below.1. Phosphorus-containing solids are recycled to smelting furnaces thus eliminating hazardous waste generation.2. Phosphorus furnace feedstock is upgraded and this permits unbeneficiated phosphate ore to be smelted.3.
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Mar 18, 2021· Fluid Components International solves flow and level measurement applications for industrial process and plant applications using patented thermal dispersion flow measurement technologies; With more than 40 years experience and the world's largest installed base of thermal dispersion instruments, you can count on FCI to know your application and have proven solutions that …
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Nov 15, 2016· The P-rich PASCH output "calcium phosphate" is an input to the process "agriculture soil". Occurring solid waste flows of the recovery process need proper treatment and are input into the process "waste management". The flow "neutralised process water" from this technology is a backflow to the process "WWTP".
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The U.S. Department of Energy's Office of Scientific and Technical Information
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phosphorus/nitrogen recovery (LysoGest® process)* * Patented system, P.C.S. , 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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The patented SusPhos process is a robust process that can produce a variety of market known, high-quality phosphate products. These range across several markets, including the flame-retardant and fertilizer industries. At SusPhos, we believe in a circular economy to achieve sustainability.
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Enabled by dozens of patented and proprietary technologies, we offer integrated solutions for sulfuric acid (from various feeds, including elemental sulfur, pyrite, H2S through wet process or dry process, spent acid, sulfurous slurry, phosphogypsum, and sulfurous flue gas), wet-process phosphoric acid, phosphate fertilizer, yellow phosphorus ...
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May 19, 2017· Abstract: The present invention provides a method for recovery of phosphate, in the form of magnesium ammonium phosphate (MAP), from a process for treating a biomass material which process comprises a digestion step performed in a digestion tank and includes a pre-treatment step employing a thermal hydrolysis, characterized in that a magnesium source is added to the material in the process ...
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Patent Center. Try the beta replacement for EFS-Web, Private PAIR and Public PAIR. Check application status. Check patent application status with public PAIR and private PAIR. Fees and payment. Pay maintenance fees and learn more about filing fees and other payments. Patent Trial & Appeal Board. Resolve disputes regarding patents with PTAB ...
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4. The process of claim 1 wherein the degree of agitation employed is represented by modified Reynold's numbers is from about 4.0×10 5 to about 1.0×10 6. 5. The process of claim 1 wherein the phosphorus values are recovered from the carbon bisulfide fraction by thermal distillation. 6.
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