Loading...
*  Enhanced Removal of Heavy Metals in Primary Treatment Using Coagulation and Flocculation - Redorbit
KEYWORDS: flocculation, coagulation, heavy metals, ferric chloride, anionic polymer, jar test, primary treatment, publicly ... reported that both anionic and nonionic polymers are used in conjunction with iron salts. Most studies agree that a polymer ... Chemical precipitation by coagulation and flocculation by divalent metal salts is a century old and proven technology. Common ... Jar tests were used to evaluate the efficiency of ferric chloride and anionic polymer for dissolved metals capture. Jar testing ...
  http://www.redorbit.com/news/science/1459696/enhanced_removal_of_heavy_metals_in_primary_treatment_using_coagulation/
*  Flue Gas Desulfurization Wastewater Treatment Primer
... particularly anionic polymers), because this can cause blinding of filter press cloths. Polymer addition should be considered ... It is therefore prudent to include a flocculation well in the primary clarifier and to provide the ability to add polymer at ... rather than relying on laboratory tests performed at lab temperature. This can be done by conducting jar testing in a water ... Trace Metal Precipitation and Suspended Solids Removal. Metals in FGD wastewater are present in a soluble or particulate form. ...
  http://www.powermag.com/flue-gas-desulfurization-wastewater-treatment-primer/
*  US5384334A - Alkoxylated alkyl glucoside ether quaternaries useful in personal care - Google Patents
... flocculation; flotation; precipitation; paints and printing inks; cleansers; oil field applications; as antistatics; as ... Ampholyte polymers for use in personal care products US6365140B1 (en) 2002-04-02. Modified starch solutions and their use in ... Ophthalmic composition including a cationic glycoside and an anionic therapeutic agent US6113888A (en) * 1999-06-15. 2000-09-05 ... The mixture is then heated to 75° C. When the polymer is fully hydrated, the MG10HDACl, CHC N-55, MeGeth-10 and methyl paraben ...
  https://patents.google.com/patent/US5384334A/en
*  AquaFit4Use - Fouling and Corrosion Parameters | Biofilm | Surfactant
h) Extracellular polymer formation These polymers are excreted by bacteria present in slime and play an important role as ... there is a risk of precipitation. The SDI method is a straightforward technical dead-end filtration test.Summary report on ... anionic or cationic. VITO.g.hours indicates a max of 1000 hours at 1 ppm free chlorine or 10000 hours at 0. oxalic and acetic ... NF and/or flocculation means. during the mounting of the ED stack and prevention during the ED process. In some cases however. ...
  https://www.scribd.com/document/109452340/AquaFit4Use-Fouling-and-Corrosion-Parameters
*  US Patent # 4,951,921. Polymers useful in the recovery and processing of natural resources - Patents.com
Polymers useful in the recovery of natural resou ... lactam are found to be useful in processes wherein the polymer ... The higher the level of Am in the copolymer, the greater the probability of precipitation at a test temperature of 250 F. For ... FLOCCULATION Other applications for the polymers of this invention include methods for concentrating finely divided organic or ... Surfactants can be selected from anionic, cationic or nonionic surfactants, suitable anionic surfactants include petroleum ...
  http://patents.com/us-4951921.html
*  US6048463A - Water continuous methyl acrylate emulsion polymer combinations and methyl acrylate emulsion homopolymers for...
... from bauxite ore with a combination of high molecular weight emulsion polymer and lower molecular weight emulsion polymers. The ... C02F1/54-Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic ... To test a polymer, that polymer was added to the 1000 ml graduated cylinder and mixed with four plunges. ... Anionic and nonionic dispersion polymers for clarification and dewatering EP0228868A2 (en) 1987-07-15. Copolymers and their use ...
  https://patents.google.com/patent/US6048463
*  Patente US6022908 - Printing liquids for improved print quality - Google Patentes
... at least one second anionic polymer, and an acid additive having a pKa up to the pKa of the at least first polymer of the first ... and at least one first anionic polymer; a second anionic printing liquid comprising an aqueous vehicle at least one second ... at least one third cationic polymer, and a pH in the range from about 2 to about 5; and a fourth anionic printing liquid ... comprising an aqueous vehicle, at least one fourth anionic dye, and a precipitating agent. More specifically, the present set ...
  http://www.google.es/patents/US6022908
*  Low-viscosity aqueous adhesive polymer dispersions - Bayer MaterialScience AG
... low-monomer aqueous polymer dispersions based on polychloroprene, and a process for the preparation thereof and the use thereof ... Testing is carried out in accordance with EN 1392.. A 100 μm thick wet film of the dispersion is applied to two test specimens ... Preparation of sol chloroprene polymers. 1976-01-13. Barney et al.. 3929752. Preparation of sol chloroprene polymers. 1975-12- ... by redissolving the polymeric content by means of toluene/acetic acid or THF and subsequent precipitation of the polymer ...
  http://www.freepatentsonline.com/9040438.html
*  US4820424A - Products and processes for the flocculation of aqueous suspensions - Google Patents
Superabsorbent polymers having improved processability US5837776A (en) 1998-11-17. Process for producing water soluble anionic ... Polymer I=Polyacrylamide. Polymer II=Co-polymer containing 70 wt % acrylamide 30 wt % Quaternary ammonium salt of dimethyl ... C02F1/5236-Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic ... These pellets were evaluated on a sample of 6% w/v coal tailings slurry observing the following test procedure:. 500 cm3 ...
  https://patents.google.com/patent/US4820424
*  PPT - Water Treatment PowerPoint presentation | free to view - id: 119fd8-M2NjZ
5) Anionic Polymer *6) Nonionic Polymer 10. Coagulant Chemicals*Alum (aluminum Sulfate), Al2(SO4)314.3H2O is the most common ... Water Treatment - Jar Testing Procedure 16. Water Treatment - Jar Testing Procedure 17. Water Treatment - Jar Testing Procedure ... serves as the common ion for the precipitation reaction.. 49. Lime Softening Softening Reactions. 3. Precipitation of carbonate ... Flocculation - The assembling of coagulated particles. Flocculation basins are used to provide slow mixing. ...
  http://www.powershow.com/view/119fd8-M2NjZ/Water_Treatment_powerpoint_ppt_presentation
*  US20040090625A1 - Device and method for particle agglomeration - Google Patents
Preferably, the polymer flocculation agent (aid) exhibits an intrinsic viscosity ranging from 0.1 to 10 dl/g (measured at 25° C ... C02F1/54-Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic ... Detectable water-treatment polymers and methods for monitoring the concentration thereof Wang et al. 2002. Relative importance ... According to the invention, water-soluble or water-swellable amphiphilic copolymers formed of cationic and anionic monomers and ...
  https://patents.google.com/patent/US20040090625A1/en
*  Table of Contents | Digital Library
Significant polymer water quality interactions on flocculation were observed. Anionic polymers promoted flocculation in the ... Seven types of filters were first tested by eluting them with 2 M KCl solution and analyzing the eluents. All filters tested ... The results suggest that phosphate retention in Fe oxide systems may be due primarily to precipitation rather than adsorption. ... Flocculation with cationic polymer was attributed to charge neutralization, whereas flocculation with anionic polymers was ...
  https://dl.sciencesocieties.org/publications/sssaj/tocs/52/5
*  The Use of Clay-Polymer Nanocomposites in Wastewater Pretreatment
In most cases, pretreatment processes involve the use of chemicals for neutralization, flocculation, and precipitation of ... Accordingly, suitable polymers might be (i) a linear water-soluble polymer such as poly-DADMAC or cationic polyacrylamide; (ii ... a flocculation step performed in the industry with flocculants which are, in some cases, based on cationic or anionic ... The nanocomposites were tested for their effect on sedimentation rate of olive oil mill and winery wastewaters (Figure 3). The ...
  https://www.hindawi.com/journals/tswj/2012/498503/
*  Water Treatment | Corrosion | Magnesium
polydimethyl-diallyl-ammonium chloride) Anionic polymer (e. focus will be on dosing of chemicals in a liquid state (i. Dosing ... Coagulation and flocculation (precipitation): Chemicals Aluminium sulphate (alum). Chemical treatment (dosing pumps) 8. ... As 60068.2.52-2003 Environmental Testing Tests - Test Kb- Salt Mist Cyclic (Sodium Chloride Solution) ... ferric chloride [FeCl3] and various polymers of organic origin. 189 hours 755 days nying dosing equipment. These settling ...
  https://www.scribd.com/doc/124742455/Water-Treatment
*  USE OF SILICON-CONTAINING POLYMERS TO IMPROVE RED MUD FLOCCULATION IN THE BAYER PROCESS - Patent application
... anionic polymer with the Bayer process stream, wherein the anionic polymer is different from the silicon-containing polymer ... polymer is discharged and dissolved in a caustic (2% sodium hydroxide) solution for performance testing. ##STR00001## [0080] As ... precipitation (i.e., recovery) circuit. The Bayer process stream contacted with the polymer can also be feed to a mud washer in ... 11. The flocculation method of claim 10, wherein the anionic polymer is selected from the group consisting of a hydroxamated ...
  http://www.patentsencyclopedia.com/app/20120125862
*  Handbook On Textile Auxiliaries, Dyes And Dye Intermediates Technology by Npcs Board Of Consultants & Engineers, ISBN:...
Principles of Developing Flame-Retardant Polymers. Testing. Polymer Classes. Additive Flame Retardants. Reactive Flame ... The following tests are made routinely on used solvent.. Detergent Concentration. The method of fessler for anionic detergents ... Polymer Reactions. COMMERCIAL APPLICATIONS. Thickening. Suspending and Dispersing. Flocculation. Binders. Coatings. Leather ... Propylene glycol alginate has improved acid stability and resists precipitation by calcium and other polyvalent metal ions. ...
  https://www.niir.org/books/book/handbook-on-textile-auxiliaries-dyes-dye-intermediates-technology/isbn-9788178331225/zb,,16c,a,0,0,a/index.html
*  Patent US5552096 - Multiple reaction process in melt processing equipment - Google Patents
Each reaction zone has means for introduction of reagents, for mixing of reagents with polymer and for removal of by/co- ... The base polymer may be of a star or linear structure. Hydrogenated polymers may be hydrogenated selectively, completely or ... in suspension in the fluid thus preventing sludge flocculation and precipitation or deposition on metal parts. Suitable ... The Caterpillar IG-2 test is also Federal Test Method 791-341. The results were compared with the performance of an equivalent ...
  http://www.google.com/patents/US5552096?dq=7350717
*  MICROORGANISMS AND METHODS FOR PRODUCING (3R)-HYDROXYBUTYL (3R)-HYDROXYBUTYRATE - Patent application
Exemplary methods include filtration, flocculation, precipitation, centrifugation, sedimentation, and the like. [0112] For the ... Dosage-effect relationships from in vitro and/or in vivo tests initially can be used to provide useful guidance on the proper ... The resins can be cross-linked polymers having active groups in the form of electrically charged sites. At these sites, ions of ... Ion exchange resins can be cationic or anionic, for example. Factors that determine the efficiency of a given ion exchange ...
  http://www.patentsencyclopedia.com/app/20160108442
*  Volume 2 part 5 final b by GEORGE DIAMANDIS - issuu
Polymer addition is required. Testing is recommended to verify that the solids can be thickened at typical polymer dosages. ... These polymers are of three basic types: •. Anionic (negative charge) -- serve as coagulants aids to inorganic Aluminum and ... including precipitation. The net evaporation may be defined as the difference between the evaporation and precipitation during ... for clarifying because high shearing stresses in a hydroclone promote the suspension of particles which oppose flocculation. ...
  https://issuu.com/diamandis/docs/volume_2__-part_5_-_final_b_1e22f6659f0e79
*  Status of Oil Brine Spill Site Remediation ABSTRACT - PDF
Heller, H. and Keren, R., 'Anionic polyacrylamide polymers effect on rheological behavior of sodium-monmorillonite suspensions ... Chemical tests Chapter D3. Chemical tests PURPOSE OF THIS CHAPTER To describe how various chemical tests can help you find out ... found that at an application rate of 50 mg polymer kg -1 air-dried soil, polymers also did not improve hydraulic conductivity ... Adequate precipitation is needed to leach salt and other contaminants from soils affected by produced waters. In arid areas (, ...
  http://docplayer.net/1846737-Status-of-oil-brine-spill-site-remediation-abstract.html
*  US20060189492A1 - Soot dispersants and lubricating oil compositions containing same - Google Patents
Polymers of lower molecular weight may also be used to form high molecular weight dispersants by incorporating multiple polymer ... to prevent sludge flocculation and precipitation of the insoluble materials. Another function of the dispersant is to reduce ... 1 were compared in a Daimler-Chrysler (Mercedes Benz) seals test using an AK6 seal material Daimler Chrysler Seals Test VDA ... Anionic polymerization process US4663064A (en) 1986-03-28. 1987-05-05. Texaco Inc.. Dibaisic acid lubricating oil dispersant ...
  https://patents.google.com/patent/US20060189492A1/en
*  DiVA - Search result
... with the higher percentage resulting from anionic polymerization. The molecular weights of the polymers, as determined by gel ... The Bligh and Dyer method underestimated the lipid content in the tested strains (25% for R. toruloides and 34% for L. starkeyi ... new' top-ranked building blocks; Citric acid recovery from fermentation broths and CaCO3 precipitation; Citric, acetic and ... flocculation and centrifugation) and preservation (sterilization and drying). For each step, yield and energy consumption are ...
  http://www.diva-portal.org/smash/resultList.jsf?searchType=SUBJECT&language=en&onlyFullText=false&af=%5B%5D&aq=%5B%5B%7B%22categoryId%22%3A%2211634%22%7D%5D%5D
*  i g process: Topics by WorldWideScience.org
Among the tested lines, g58-95 e g127-97 confirmed to have low plants, g94, g167-97 and g29b-94, confirmed to offer good forage ... In the homogeneous precipitation method, materials were obtained with specific surface area of 123 - 224 m² g-1. A variation of ... The flocculation process increased corn starch digestibility. Ruminal degradability of the cassava scrapings starch was higher ... Resumo em inglês In this work it is proposed a simple and versatile undergraduate chemical experiment in polymer and ...
  https://worldwidescience.org/topicpages/multi/PT/i/i+g+process.html
*  PRODUCTION OF COMMERCIAL BIODIESEL FROM GENETICALLY MODIFIED MICROORGANISMS - Patent application
The dispersant additive can prevent sludge flocculation and precipitation or deposition on metal parts. In a preferred ... The test methods followed the protocols set out in the ASTM D 6571 biodiesel standard. TABLE-US-00013 TABLE E5 Component Test ... 0297]Foam inhibitors typically include alkyl methacrylate polymers and dimethyl silicon polymers. They can be included in the ... Anionic surfactants have detergent-like activity and are generally used for cleaning applications. Cationic surfactants contain ...
  http://www.patentsencyclopedia.com/app/20100257777
*  Patent US20090140213 - Method of making an applicator liquid for electronics fabrication process - Google Patents
Substantial precipitation and flocculation and the like can be detected by a variety of methods. Precipitates and aggregates ... Polymer and method for using the polymer for solubilizing nanotubes. US20040071949 *. 24 Jul 2002. 15 Apr 2004. Glatkowski Paul ... The test results demonstrate that comparable levels of purity were achieved over a number of samples tested. Most of the metals ... Other earlier attempts involve the use of cationic, anionic or non-ionic surfactants to disperse the SWNT in aqueous and non- ...
  http://www.google.com.au/patents/US20090140213