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Monday, August 3, 2020 | History

3 edition of Feasibility of liquid ion exchange for extracting phosphate from wastewater. found in the catalog.

Feasibility of liquid ion exchange for extracting phosphate from wastewater.

General Mills Chemicals.

Feasibility of liquid ion exchange for extracting phosphate from wastewater.

by General Mills Chemicals.

  • 70 Want to read
  • 34 Currently reading

Published by [Environmental Protection Agency, Water Quality Office]; for sale by the Supt. of Docs., U.S. Govt. Print. Off. in Washington .
Written in English

    Subjects:
  • Sewage -- Purification -- Ion exchange process.,
  • Sewage -- Purification -- Phosphate removal.

  • Edition Notes

    SeriesWater pollution control research series
    ContributionsUnited States. Environmental Protection Agency.
    Classifications
    LC ClassificationsTD757.5 .G45
    The Physical Object
    Paginationvi, 40 p.
    Number of Pages40
    ID Numbers
    Open LibraryOL4376860M
    LC Control Number78614838

    k) Following precipitation of chromic oxide, the filtrate liquid can be treated by ion exchange using the Dow cation resin IRC followed by treatment with activated alumina. This resin will remove chromium from the filtrate liquor to ppm, and phosphorus to 2ppm on a single pass over the resin.   A treatment screening study was performed investigating activated carbon adsorption, adsorption onto calcium fluoride solids, evaporation, ion exchange, and liquid-liquid extraction. Ion exchange was determined to be the best technology for treatment of PFOA/PFOS wastewater.

    Ion exchange 48 Technology summary—refinery wastewater reuse 50 Microfiltration or ultrafiltration, plus nanofiltration 53 Ion exchange 53 Zero liquid discharge 53 References 55 List of Tables Table 1 Typical sources of water 4 Table 2 Contaminants in raw water 7 Table 3 Sources of wash water 9 extraction process and/or pickup during. Methods have been studied including solvent extraction, chemical precipitation, gravity separation, ion exchange, reverse osmosis, solvent extraction, electrodialysis and electrocoagulation, adsorption, and flotation for phosphate removal from sewage system. Adsorption is preferred for cost-effectiveness.

    Biological-ion exchange process for ammonium removal from secondary effluent. Water Sci Technol. ; 34 (1): - Lahav O, Green M. Ammonium removal using ion exchange and biological regeneration. Water Res. ; 32 (7): - Liberti L, Boari G, Passino R. Advanced wastewater treatment by ion exchange.   Solvent Extraction and Ion Exchange. Impact Factor. Optical Spectroscopic Investigation of Hexavalent Actinide Ions in n-Dodecane Solutions of Tri-butyl Phosphate. Lumetta et al. Published online: 14 Aug CFD-PB Modelling of Liquid–liquid Two-phase Flow in Pulsed Disc and Doughnut Column. Sourav Sarkar.


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Feasibility of liquid ion exchange for extracting phosphate from wastewater by General Mills Chemicals. Download PDF EPUB FB2

FEASIBILITY OF LIQUID ION EXCHANGE FOR EXTRACTING PHOSPHATE FROM WASTEWATER by General Mills Chemicals, Incorporated Minneapolis, Minnesota for the ENVIRONMENTAL PROTECTION AGENCY Program # EAP Contract # October, For sale by the Superintendent of Documents, U.S.

Government Printing Office Washington, B.C. Additional Physical Format: Online version: Ditsch, LeRoy. Feasibility of liquid ion exchange for extracting phosphate from wastewater. Washington, DC: Environmental Protection Agency, Water Quality Office,   Ion exchange (IEX) processes are a promising alternative to remove and recover nutrients from municipal wastewater.

To assess the feasibility and viability of Cited by: 3. The objective of this program was to investigate the feasibility of bound-liquid ion-exchange membrane systems for removal and recovery of chromate from plating rinse waters, thereby conserving an important resource and minimizing harmful chromate effluent levels.

A Pilot Study on Phosphate and Nitrate Removal from Secondary Wastewater Effluent Using a Selective Ion Exchange Process Article (PDF Available) in Environmental Technology 25(5) June.

This urine stream contains about 80% of the N, 56% of the P and 63% of the K found in domestic wastewater [].Init was predicted that the P from human urine and feces alone, could provide 22% of the global P demand [].In addition, wastewater treatment plants could become net producers of energy instead of energy consumers by adopting source separation since energy can be.

Using membranes with higher ion exchange capacity resulted in better cell performance. Electrodialytic removal of Cd(II) from wastewater sludge, was studied (Jakobsen et al., ). During the remediation a stirred suspension of wastewater sludge was exposed to an electric dc field.

The liquid/solid (mL/g fresh sludge) ratio was between and 2. Phosphorus may be captured directly from the wastewater [25], urine (if separated in no-mix toilets), and from liquid streams generated during the sewage treatment, such as secondary treated. Chemical Phosphorus Removal Using alum, ferric salts, or even lime for chemical precipitation is the oldest method for reducing soluble phosphorus in effluents.

Today we usually use alum or ferric salts since they function better at the near neutral pH seen in wastewater treatment units.

Therefore, typical attrition losses can be expected to be within 5 to 20% depending on which type of ion exchange resin used in the systems.

Ion exchange softening, also known as Sodium Zeolite Softening is a typical example of how the ion exchange process works to purify the water by removing the hardness level caused by presence of calcium.

Phosphorus is an essential nutrient and is often second, only to N, as a limiting mineral nutrient to plant production. Phosphorus is present as either H 2 PO4 2-in alkaline soils or H 2 PO4 2-in acidic soils, and apatite (Ca phosphate) is the most common P mineral found in soils (Southern Cooperative Series, ).

Phosphorus inputs to the. Solution: creation of a pure, unpolluted phosphorus product from wastewater The highest potential for phosphorus recovery can be found within the municipal wastewater In Germany, between 20% and 40% of the „primary phosphorus“ used phosphate ion exchangers May be exchanged reversiblywith HPO 4 2-LDH Type Determined formula 10 Source.

Study about Doping Ion La 3+ onto Surface of Pyrolusite Ore for Removing Simultaneously Both Fluoride and Phosphate from Wastewater. Journal of Chemistry, DOI: // Huan Xu, Ge Liu, Guang.

Because of this, recycling of phosphorus and new ways of extracting it, have become areas which receive attention on a global scale. In collaboration with among other Aarhus Vand, a municipal water supply company in Aarhus, Denmark, Grundfos is partnering in a project, where new technologies for extracting phosphorus from waste water are being.

Water/Wastewater. The oxidized phosphates are anions so they can be removed from solutions with anion exchange resins. If phosphates are present in acidic solutions, they can be removed with an acid absorber like AmberLyst™ A21 Resin.

When phosphates are present as acid salts, a strong base anion exchanger like AmberSep™ 21K XLT Resin is recommended. Phosphorus removal is a bigger issue today than ever before. State laws limit the levels of phosphorus that can be discharged from wastewater into the environment. Generally, the enforcement of these laws also happens at the state level.

Many U.S. states currently regulate, or will soon regulate, these phosphorus levels. operation and Development (OECD/NEA) and the IAEA jointly published a book on Uranium Extraction Technology. A primary objective of this report was to docu­ ment the significant technological developments that took place during the s.

The purpose of this present publication is to update and expand the original book. Ion exchange dealkalization systems produce hardness-free, low-alkalinity water at a reasonable cost, and with a high degree of reliability. They are well suited for processing feedwater for medium-pressure boilers, and for process water for the beverage industry.

Split stream and weak acid cation systems also reduce the total dissolved solids. various solvents like sulfonated kerosene, chloroform and ionic liquid. Obviously, the maximum extraction efficiency of lithium ion using TBP in ionic liquid was found. When chloroform or sulfonated kerosene was used as diluent at the same conditions, however, the extraction efficiency of lithium ions was not more than 10%.

Ion Exchange and Adsorption-Based Methods. Reactive nitrogen exists as NH 4 + at typical wastewater pH values [].It is also a significant contaminant in domestic grey water and urine [].Because it is a cation, ion exchange and adsorption-based processes are highly relevant because of their unique properties such as high selectivity for NH 4 +, high removal, fast uptake kinetics and.

CARUS CORPORATION Lead and Copper Rule June 7, EPA Document in Effect Current Action Level MCLG Lead mg/L 0 mg/L Copper mg/L mg/L.Green M, Mels A, Lahav O. Biological-ion exchange process for ammonium removal from secondary effluent.

Water Sci Technol. ;34(1)– Lahav O, Green M. Ammonium removal using ion exchange and biological regeneration. Water Res. ;32(7)– Liberti L, Boari G, Passino R. Advanced wastewater treatment by ion exchange.S. Ohura, B.K. Biswas, H. Harada, M. Kondo, K.

Inoue, K. Ohto, H. Kawakita, Phosphorus recovery as Potassium-Magnesium-Phosphate from effluent of piggery wastewater using Zr(IV)-loaded saponified orange juice residue, Journal of Chemical Engineering of Japan, 44 () –