Just fill in the form below, click submit, you will get the price list, and we will contact you within one working day. Please also feel free to contact us via email or phone. (* is required).

anionic polyacrylamide effects on soil sorption company in america

  • Anionic Polyacrylamide Effects on Soil Sorption and ...

    2002-7-1 · There is a concern regarding the environmental impact of PAM after its application. The effects of anionic PAM on the sorption characteristics of four widely used herbicides (metolachlor, atrazine, 2,4-D, and picloram) on two natural soils were assessed in batch equilibrium experiments.

    Get Price
  • Anionic polyacrylamide effects on soil sorption and ...

    Anionic polyacrylamide effects on soil sorption and desorption of metolachlor, atrazine, 2,4-D, and picloram. Lu J(1), Wu L, Letey J, Farmer WJ. Author information: (1)Department of Environ Sci, Univ of California, Riverside 92521, USA.

    Get Price
  • Anionic Polyacrylamide Effects on Soil Sorption and ...

    A locked padlock) or https:/ means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

    Get Price
  • anionic polyacrylamide environmental impact in

    Anionic polyacrylamide effects on soil sorption and ... There is a concern regardingthe environmental impact of PAM after its application. The effects of anionic PAMon the sorption characteristics of four widely used herbicides (metolachlor,atrazine, 2,4-D, and picloram) on two natural soils were assessed in batchequilibrium experiments.

    Get Price
  • anionic polyaluminium chloride effects on soil

    anionic polyaluminium chloride effects on soil sorption In general, nonionic surfactants are used for soil washing due to their low cost, low toxicity, and low sorption onto the soil (Ahn et al., 2007). In some cases, anionic surfactants may also be used for soil washing to enhance washing efficiency

    Get Price
  • Effects of soil and water properties on anionic ...

    Knowing the sorptive behavior of anionic polyacrylamide (PAM) by soils is useful in predicting the appropriate application rate, depth of effective treatment, and its mobility in soils, Sorption isotherms of PAM by soil materials, six natural soils, and their subsamples with partial organic matter (OM) removed by H 2 O 2 oxidization under different dissolved salt concentrations were examined.

    Get Price
  • Effects of Soil and Water Properties on Anionic ...

    2002-3-1 · The negative effect of OM on PAM sorption was attributed to the reduction of accessible sorption sites by cementing inorganic soil components to form aggregates and to the enhancement of electrostatic repulsion between PAM and soil surface by its negatively charged functional groups.

    Get Price
  • Lu, J.H., Wu, L. and Letey, J. (2002) Effects of soil and ...

    Lu, J.H., Wu, L. and Letey, J. (2002) Effects of soil and water properties on anionic polyacrylamide sorption. Soil Science Society of America Journal, 66, 578-584 ...

    Get Price
  • The mechanism of anionic polyacrylamide adsorption

    2018-11-1 · The anionic polyacrylamide AN PAM (with various contents of carboxyl groups) adsorption mechanism on the montmorillonite surface was examined. The effect of hazardous chromium(VI) ions addition was studied. The anionic polyacrylamide is a popular soil flocculant, commonly used to prevent erosion of arable soils.

    Get Price
  • Effect of Polyacrylamide Application on Water and

    Polyacrylamide (PAM) is known as one of soil conditioner that functions to stabilize soil structure, increase infiltration, and reduce surface runoff. This study assesses the effects of PAM on the vertical movement of soil-water and major/minor nutrients (NO3-N, …

    Get Price
  • anionic polyacrylamide effects on soil sorption ...

    Effects of Soil and Water Properties on Anionic ... 2016-9-13 · The PAM sorption isotherms can be well described by the Langmuir equation. Soil texture, OM content, and dissolved salts (a combined contribution of soil salinity and irrigation water quality) influenced the extent of PAM sorption.

    Get Price
  • Effects of Soil and Water Properties on Anionic ...

    2021-6-2 · Effects of Soil and Water Properties on Anionic Polyacrylamide Sorption. Knowing the sorptive behavior of anionic polyacrylamide by soils is useful in predicting the appropriate application rate, depth of effective treatment, and its mobility in soils.Sorption isotherms of PAM by soil materials, six natural soils, and their subsamples with partial organic matter (OM) removed by H2O2 ...

    Get Price
  • Polyacrylamide sorption opportunity on interlayer and ...

    2005-1-1 · Effects of soil and water properties on anionic polyacrylamide sorption Soil Sci. Soc. Am. J. , 66 ( 2002 ) , pp. 578 - 584 CrossRef View Record in Scopus Google Scholar

    Get Price
  • [PDF] Anionic polyacrylamide influence on the lead(II)

    Purpose Polymeric substances, as soil conditioners, limit the erosion process as well as improve the soil structure. The same macromolecular compounds may influence the heavy metal accumulation in soil environment. The main aim of this study was investigation of anionic polyacrylamide (AN PAM) effect on the lead(II) ion sorption on the montmorillonite surface. The effects of Pb(II) ion ...

    Get Price
  • polyacrylamide addition to soils: impacts on soil

    EFFECTS OF POLYACRYLAMIDE AND IRRIGATION METHOD. The objective of this study was to observe the effects of irrigation method and polyacrylamide additions on selected soil physical properties. Polyacrylamide (PAM) was applied to fallow clay loam soil to the rate of 650 kg ha1. The PAM-treated plots were flood-irrigated at the rate of 5 cm wk-1.

    Get Price
  • Effects of anionic polyacrylamide on maize growth: a

    2011-7-30 · Various anionic polyacrylamide polymers (PAMs) are frequently used to improve soil properties and reduce erosion. However, the effects of their application on plant growth remain unclear. Aggregate-free loess with high water holding capacity was used as growing substrate to test the effects of two rates (10 and 40 kg ha−1) of a linear PAM on the growth of maize (Zea maize L.) for a period up ...

    Get Price
  • Synergistic effects of anionic polyacrylamide and

    2019-11-1 · Excessive application of phosphorus (P) fertilizer to the agriculture soil can lead to the P loss to the aquatic ecosystem. Three soils from different land use (tea, paddy, and vegetable soils) were treated with biogas slurry (BS) at rate of 79.8 kg ha −1, anionic polyacrylamide (PAM) at rate of 12.5, 25 and 50 kg ha −1, Gypsum (Gy) at rate of 5t ha −1, and the control (Ck) without ...

    Get Price
  • Factors affecting flocculation performance of synthetic ...

    2014-6-19 · The flocculation kinetics of anionic polyacrylamide in Kaolin suspensions has been investigated as a function of pH (4 ~ 9), soil-water NaCl (0.5~10 mg·L −1) and soil organic matter (0.05 ~ 0.25 g·L −1). Essential factors, such as PAM & soil-water pre-soaking time, the number of end-over-end inversion and PAM optimal dosage, were pre ...

    Get Price
  • Effects of superabsorbent polyacrylamide hydrogel

    2020-10-29 · Lu JH, Wu L, Letey J (2002) Effects of soil and water properties on anionic polyacrylamide sorption. Soil Sci Soc Am J 66:578–584. CAS Google Scholar Lu S, Chen F, Ngo HH, Guo W, Feng C, Wu J, Zheng B (2016) Effect of straw and polyacrylamide on the stability of land/water ecotone soil and the field implementation.

    Get Price
  • Soil and water conservation effects on soil properties

    2017-9-1 · 2.2. Soil Sampling and data collection. Soil samples were collected from 24 sample sites in August 2016 ().Different soil sampling method have their own advantages and drawbacks Landon (1984). suggests judgment sampling for selection of typical sites is feasible to represent large areas.Accordingly, we used judgment sampling to take representative soil samples from conserved and non-conserved ...

    Get Price
  • anionic polyacrylamide environmental impact in

    Anionic polyacrylamide effects on soil sorption and ... There is a concern regardingthe environmental impact of PAM after its application. The effects of anionic PAMon the sorption characteristics of four widely used herbicides (metolachlor,atrazine, 2,4-D, and picloram) on two natural soils were assessed in batchequilibrium experiments.

    Get Price
  • Effects of anionic polyacrylamide on maize growth:

    2011-7-30 · Various anionic polyacrylamide polymers (PAMs) are frequently used to improve soil properties and reduce erosion. However, the effects of their application on plant growth remain unclear. Aggregate-free loess with high water holding capacity was used as growing substrate to test the effects of two rates (10 and 40 kg ha−1) of a linear PAM on the growth of maize (Zea maize L.) for a period up ...

    Get Price
  • Impact of polyacrylamide treatment on sorptive

    High-molecular-weight, anionic polyacrylamide (PAM) is added to irrigation water to reduce soil erosion during furrow irrigation of crops. The chemical nature of PAM, together with the observation that the polymer can be biotransformed by soil bacteria, led us to question the impact of PAM treatment on the fate of coapplied agrochemicals.

    Get Price
  • POLYACRYLAMIDE SOIL AMENDMENT EFFECTS ON

    2004-1-23 · indicate that the use of anionic polyacrylamide (with or without gypsum) can provide substantial benefits in reducing runoff and soil loss, and enhancing vegetation growth on very steep embankments. Keywords. Soil erosion, Erosion control, Soil amendments, Polymers, Polyacrylamide, PAM, Vegetation establishment, Reclamation, Construction sites.

    Get Price
  • Effects of polyacrylamide on soil erosion and

    2016-6-1 · In most applications, anionic polyacrylamide (PAM) is often used as a soil amendment to manage infiltration, runoff and soil erosion (Entry and Sojka, 2003, Lentz et al., 1998, Lentz et al., 2001, Sojka et al., 1998). PAM is commonly adsorbed by soil through cationic bridges between soil and polymer anionic groups, and multivalent cations in ...

    Get Price
  • Combined effects of polyacrylamide and

    2018-10-1 · To investigate this potential, we treated in situ field plots with two practical surface application levels of anionic polyacrylamide (PAM only) with and without nanomagnetite (PAM-NM), examined soil physical properties, and evaluated the impact of this amendment on contaminant sorption and soil erosion control.

    Get Price
  • Anionic Polyacrylamide Polymer Adsorption by

    2003-6-1 · Heller, H. and Keren, R. (2002) Anionic polyacrylamide polymers effect on rheological behavior of Na-montmorillonite suspensions. Soil Science Society of America Journal, 66, 19–25. Article Google Scholar Keren, R. and Sparks, D.L. (1994) Effect …

    Get Price
  • Effects of superabsorbent polyacrylamide hydrogel

    2020-10-29 · Lu JH, Wu L, Letey J (2002) Effects of soil and water properties on anionic polyacrylamide sorption. Soil Sci Soc Am J 66:578–584. CAS Google Scholar Lu S, Chen F, Ngo HH, Guo W, Feng C, Wu J, Zheng B (2016) Effect of straw and polyacrylamide on the stability of land/water ecotone soil and the field implementation.

    Get Price
  • Turbidimetric Determination of Anionic

    Superabsorbent polymers have been used widely in agricultural production in arid and semi-arid regions to manage the soil water holding capacity. As the common water-retention polymers, the molecular weights, and structures of polyacrylamide (PAM) and sodium carboxymethylcellulose (CMC) are obviously different. Modified soil water management with polymers (i.e., PAM and CMC) has shown …

    Get Price
  • anionic polyacrylamide environmental impact in

    Anionic polyacrylamide effects on soil sorption and ... There is a concern regardingthe environmental impact of PAM after its application. The effects of anionic PAMon the sorption characteristics of four widely used herbicides (metolachlor,atrazine, 2,4-D, and picloram) on two natural soils were assessed in batchequilibrium experiments.

    Get Price
  • Effects of polyacrylamide molecular weight and mass ...

    2021-3-18 · Anionic PAM is widely used in cropland water retention, soil erosion control, and other soil management strategies 5,6,7,8 because of its low cost and stability, and because it is non-toxic and ...

    Get Price
  • Anionic Polyacrylamide Polymer Adsorption by

    2003-6-1 · Heller, H. and Keren, R. (2002) Anionic polyacrylamide polymers effect on rheological behavior of Na-montmorillonite suspensions. Soil Science Society of America Journal, 66, 19–25. Article Google Scholar Keren, R. and Sparks, D.L. (1994) Effect …

    Get Price
  • Polyacrylamide (PAM) and Soils - USDA

    isotope-labeling; adsorption-; sorption-isotherms; aggregates-; stability-; physical-properties-of-soil Abstract: Although the effects of polymers on various soil physical properties have been investigated, adsorption of polymers by soils has not been extensively studied. ... The three anionic polyacrylamide (PAM) compounds had negative charge ...

    Get Price
  • Using polyacrylamide to control erosion on agricultural ...

    2012-12-12 · applied 25 kgha-1 (22 lbsac-1) anionic PAM on disturbed soil, and this treatment was effective in reducing runoff and soil loss. Zhang and Miller (1996) studied the effect of anionic polyacrylamide on soil erosion in Using polyacrylamide to control erosion on agricultural and disturbed soils in rainfed areas

    Get Price
  • Effectiveness of Polyacrylamide in Reducing Runoff

    The use of anionic polyacrylamide (PAM) as a soil conditioner could help prevent soil loss by water. In this study, we determined the effective granular PAM rate that best reduces runoff and soil loss from Oxisols. Furthermore, the effectiveness of the selected PAM rate was tested by applying it in a mixture with gypsum (G) or lime (L). The study was conducted in two phases: (i) Dry PAM rates ...

    Get Price
  • Anionic Polyacrylamide Chemicals Flocculant Water ...

    2021-1-3 · Water treatment residuals produced after addition of polyaluminium chloride and anionic polyacrylamide (PAC-APAM WTRs) were evaluated for the potential to remove Cd2+ and Zn2+ from aqueous solutions by batch adsorption studies. The maximum adsorption capacity obtained from Langmuir modeling was 85.5 mg Cd2+/g PAC-APAM WTRs or 25.6 mg Zn2+/g PAC-APAM WTRs. A …

    Get Price
  • Polyaluminium Chloride and Anionic Polyacrylamide

    2003-9-1 · Analysis of PAM concentrations in soil sorption supernatants, soil leachates, and water samples from irrigation furrow streams showed that SEC is an effective approach for quantifying low concentrations (0–10 mg L −1) of PAM in waters containing soil DOM and salts.

    Get Price
  • Determination of Polyacrylamide in Soil Waters by

    2018-6-27 · anionic and nonionic, with nonionic surfac-tants showing stronger and longer-lasting soil sorption (Kuhnt 1993; Park and Bielefeldt 2003). Block polymers are a class of nonionic surfactants specially formulated to enhance the surfactant’s sorption to soil and remain active in the soil matrix longer than other nonionic surfactants (Schmoka 1977).

    Get Price
  • anionic polyacrylamide environmental impact in

    Anionic polyacrylamide effects on soil sorption and ... There is a concern regardingthe environmental impact of PAM after its application. The effects of anionic PAMon the sorption characteristics of four widely used herbicides (metolachlor,atrazine, 2,4-D, and picloram) on two natural soils were assessed in batchequilibrium experiments.

    Get Price
  • POLYACRYLAMIDE SOIL AMENDMENT EFFECTS ON

    2004-1-23 · indicate that the use of anionic polyacrylamide (with or without gypsum) can provide substantial benefits in reducing runoff and soil loss, and enhancing vegetation growth on very steep embankments. Keywords. Soil erosion, Erosion control, Soil amendments, Polymers, Polyacrylamide, PAM, Vegetation establishment, Reclamation, Construction sites.

    Get Price
  • Anionic Polyacrylamide Manufacturer,Anionic

    Ideal for controlling erosion, this product is widely utilized as soil conditioner on farm land and construction sites. Processed by adept team of professionals, the offered Anionic Polyacrylamide is suitable for sugar refining as well as juice clarifying purposes.

    Get Price
  • Anionic Polymer Flocculant & Polyacrylamide Powder ...

    Polyacrylamide Emulsion For Soil And Water Conservation. Polyacrylamide emulsion fr soil and water conservation . 1. Product introduction. The water in oil emulsion of the polyacrylamide is from acrylamide monomer, cationic or anionic monomer containing an emulsifier in the oil phase polymerization. Polyacrylamide Wikipedia

    Get Price
  • Polyacrylamide emulsion for soil and water

    2014-10-16 · 2011-10-24 What is polyacrylamide ? 2011-06-04 Construct the study-type enterprise start the systemic train activities. 2010-07-17 The IFT Annual Meeting & Food Expo. 2010-06-04 The 2010 annual general stockholders' meeting opened. 2010-03-01 Effects of Soil and Water Properties on Anionic Polyacrylamide Sorption

    Get Price
  • PAM Polyacrylamide Suppliers News

    Anionic Polyacrylamide Emulsion, High Viscosity Pam Emulsion, Emulsified Cationic Flocculant manufacturer supplier in China, offering High Viscosity Anionic Polyacrylamide (PAM) Emulsion, Solid Polydadmac Powder for Water Treatment Coagulant (poly diallyl dimethyl ammonium chloride), Aerobic Tank Bacteria for Wastewater Treatment and so on.

    Get Price
  • Viscosity Enhancer Anionic Emulsion Polyacrylamide in ...

    2021-2-16 · Because of their usually high molecular weight, polymers are generally considered as being of low environmental concern and are, therefore, exempted from registration and evaluation within REACH. This exemption is currently being reviewed by the European Commission. Against this background, data on the environmental fate and effects of selected water-soluble synthetic organic …

    Get Price
  • Environmental fate and effects of water-soluble

    2021-7-15 · Use and notice of nonionic polyacrylamide. Polyacrylamide is mainly cationic, anionic and non-ionic. Among these types, the application range of nonionic polyacrylamide is limited. The production volume and model of the manufacturer are also relatively small. The nonionic polyacrylamide is a good flocculant in water treatment.

    Get Price
  • Use and Notice of Nonionic Polyacrylamide - IRO Oil ...

    2003-7-24 · The distribution coefficient was determined to be a function of organic matter and pH in the soil. A model based on distribution coefficients was developed to predict bentazone sorption in soils. The organic matter-normalized partition coefficients for the neutral and anionic forms of bentazone were 370.3 and 2.40 mL g-1, respectively.

    Get Price
  • Viscosity Enhancer Anionic Emulsion Polyacrylamide in ...

    Anionic Polyacrylamide Emulsion, High Viscosity Pam Emulsion, Emulsified Cationic Flocculant manufacturer supplier in China, offering High Viscosity Anionic Polyacrylamide (PAM) Emulsion, Solid Polydadmac Powder for Water Treatment Coagulant (poly diallyl dimethyl ammonium chloride), Aerobic Tank Bacteria for Wastewater Treatment and so on.

    Get Price
  • High molecular weight and high viscosity

    Blufloc Polyacrylamide (PAM) Polyelectrolyte is water soluble polymer . Polyacrylamide degradation and its implications in. Sep 07, 2018· High molecular weight (10 6 –3 × 10 7 Da) polyacrylamide (PAM) is commonly used as a flocculant in water and wastewater treatment, as a soil conditioner, and as a viscosity . Cited by: 2

    Get Price
  • Literature on Polyacrylamide Gels | Linda Chalker

    Literature on Agricultural, Horticultural, and Medial Uses of Polyacrylamide Gels Compiled by Dr. Linda Chalker-Scott, Ph.D. Associate Professor and Extension Urban Horticulturist, WSU Puyallup Research and Extension Center Cross-linked PAM Hydrogel Effects on Plants Abbey, T. and T. Rathier. 2005. Effects of mycorrhizal fungi, biostimulants and water absorbing polymers on the growth and ...

    Get Price
  • Influence of Organic Matter and pH on Bentazone

    2003-7-24 · The distribution coefficient was determined to be a function of organic matter and pH in the soil. A model based on distribution coefficients was developed to predict bentazone sorption in soils. The organic matter-normalized partition coefficients for the neutral and anionic forms of bentazone were 370.3 and 2.40 mL g-1, respectively.

    Get Price
  • Environmental fate and effects of water-soluble

    2021-2-16 · Because of their usually high molecular weight, polymers are generally considered as being of low environmental concern and are, therefore, exempted from registration and evaluation within REACH. This exemption is currently being reviewed by the European Commission. Against this background, data on the environmental fate and effects of selected water-soluble synthetic organic …

    Get Price
  • Effect of coagulant addition on the sedimentation of a su ...

    2011-11-29 · low sorption onto soils [10]. In some cases, anionic surfactants may also be used for soil washing to enhance washing efficiency with or without nonionic surfactants [11]. However, the operating costs of surfactant-mediated soil-washing processes in practical applica-tions are quite high because the performance of soil washing in-

    Get Price
  • Items where Subject is 'Soil' - NWISRL Publications

    2017-3-6 · Soil Science Society of America Journal. ... Carbon and nitrogen stable isotope ratios can estimate anionic polyacrylamide degradation in soil. Geoderma. 145:8-16. Entry, ... G.A. and Kincaid, D.C. (2006) Sprinkler droplet energy effects on soil penetration resistance and …

    Get Price
  • pdf effect of gypsum and polyaluminium chloride ...

    Effects of Gypsum Addition on Solubility of Nutrients in Soil Amended With Peat - USDA. each treatment, which gave a total of 24 soil/gypsum mixtures. Another set of identical 24 soil/gypsum mixtures was prepared for studying the effect of peat application on the water solubility of elements. An air-dried finely ground (<2-mm) Free Inquiry

    Get Price
  • Hydro-mechanical properties of Calcigel

    Calcigel bentonite-polyacrylamide (PAA) composites were investigated for their formation characteristics and their macroscopic hydro-mechanical and microscopic structural properties. The composites prepared were different in terms of the polymer charge, i.e. cationic (PAA + ), anionic (PAA − ), non-ionic (PAA o) and in terms of the polymer-to ...

    Get Price
  • EFFECTS OF CLAY CONTENT IN SOIL ON PESTICIDES

    Sorption of pesticides is generally evaluated by the use of sorption isotherms 19, 39 – 41. Batch equilibrium is a common technique used to determine soil sorption of pesticides. In a batch equilibrium technique, a series of solutions containing the pesticide to be tested at …

    Get Price
  • anionic polyacrylamide environmental impact in

    Anionic polyacrylamide effects on soil sorption and ... There is a concern regardingthe environmental impact of PAM after its application. The effects of anionic PAMon the sorption characteristics of four widely used herbicides (metolachlor,atrazine, 2,4-D, and picloram) on two natural soils were assessed in batchequilibrium experiments.

    Get Price
  • Impact of polyacrylamide treatment on sorptive

    High-molecular-weight, anionic polyacrylamide (PAM) is added to irrigation water to reduce soil erosion during furrow irrigation of crops. The chemical nature of PAM, together with the observation that the polymer can be biotransformed by soil bacteria, led us to question the impact of PAM treatment on the fate of coapplied agrochemicals.

    Get Price
  • PAM Polyacrylamide Suppliers News

    2014-10-16 · 2011-10-24 What is polyacrylamide ? 2011-06-04 Construct the study-type enterprise start the systemic train activities. 2010-07-17 The IFT Annual Meeting & Food Expo. 2010-06-04 The 2010 annual general stockholders' meeting opened. 2010-03-01 Effects of Soil and Water Properties on Anionic Polyacrylamide Sorption

    Get Price
  • Global Polyacrylamide Market Size Research Report

    The product segment is bifurcated into anionic, non-ionic, cationic, and other polymers. The anionic polyacrylamide contributed for the largest market share owing to its popular use as soil conditioner. The regional segmentation is given by North America, Europe, Asia-Pacific, Latin America, and the …

    Get Price
  • Anionic polyacrylamide chemical soil stabilizer ...

    Anionic polyacrylamide chemical soil stabilizer Polyacrylamide Price, US 1.8 - 2.5 Kilogram, Chemical Auxiliary Agent, 9003-05-8, anionic polyacrylamide.Source from Yixing Bluwat Chemicals Co., …

    Get Price
  • Ecotoxicological effects of polyacrylate, acrylic acid ...

    2020-8-13 · effects of polyacrylamide and polyacrylate on soil and aquatic organisms. Based on the data available, and when possible, provisional critical concentrations, where negative effects could be probable, were derived. In parallel, an evaluation of realistic exposure of the respective polymers

    Get Price
  • Hydro-mechanical properties of Calcigel

    Calcigel bentonite-polyacrylamide (PAA) composites were investigated for their formation characteristics and their macroscopic hydro-mechanical and microscopic structural properties. The composites prepared were different in terms of the polymer charge, i.e. cationic (PAA + ), anionic (PAA − ), non-ionic (PAA o) and in terms of the polymer-to ...

    Get Price
  • Xitao Polymer Co., Ltd. - Polyacrylamide Series

    Quality is never an accident, it is always the r Xitao Polymer Co., Ltd. was founded in 1997 and has been dedicating to the innovation of PAM series products. It is a high-tech company that combines research, production, marketing, and after-sale service. It not only produces cationic polyacrylamide (CPAM), anionic polyacrylamide (APAM), non ...

    Get Price
  • Effect of coagulant addition on the sedimentation of a su ...

    2011-11-29 · low sorption onto soils [10]. In some cases, anionic surfactants may also be used for soil washing to enhance washing efficiency with or without nonionic surfactants [11]. However, the operating costs of surfactant-mediated soil-washing processes in practical applica-tions are quite high because the performance of soil washing in-

    Get Price
  • Spills of Hydraulic Fracturing Chemicals on

    2021-3-12 · Hydraulic fracturing frequently occurs on agricultural land. Yet the extent of sorption, transformation, and interactions among the numerous organic frac fluid and oil and gas wastewater constituents upon environmental release is hardly known. Thus, this study aims to advance our current understanding of processes that control the environmental fate and toxicity of commonly used …

    Get Price