• pretreatment of seawater by pac/pam coagulation

    Pretreatment of Seawater by PAC/PAM Coagulation

    2013-09-01· Coagulation-photocatalytic oxidation process was used for pretreatment of simulated seawater, which had moderate turbidity and more organics. The optimal conditions of PAC/PAM coagulation and TiO2 photocatalytic oxidation were investigated by simple variable method, coagulation and photocatalytic oxidation were combinated under optimal conditions finally.

  • pretreatment of seawater by pac/pam coagulation

    Pretreatment of Seawater by PAC/PAM Coagulation

    Request PDF Pretreatment of Seawater by PAC/PAM Coagulation-Photocatalytic Oxidation Process Coagulation-photocatalytic oxidation process was used for pretreatment of simulated seawater, which

  • pac/pam coagulation scientific.net

    PAC/PAM Coagulation scientific.net

    Pretreatment of Seawater by PAC/PAM Coagulation-Photocatalytic Oxidation Process Authors: Yu Lian Quan, Bi Qing Shi, Li Jing Yang, Ren Zhi Zhang Abstract: Coagulation-photocatalytic oxidation process was used for pretreatment of simulated seawater, which had moderate turbidity and more organics.

  • desalination pretreatment lenntech

    Desalination Pretreatment Lenntech

    Seawater Desalination typical pretreatment processes: A very cost-effective way to avoid biological fouling is seawater chlorination.Unfortunately, chlorine oxidizes the membrane material, therefore only 1000 ppmh can be tolerated.

  • bi qing shi scientific.net

    Bi Qing Shi scientific.net

    Pretreatment of Seawater by PAC/PAM Coagulation-Photocatalytic Oxidation Process. Authors: Yu Lian Quan, Bi Qing Shi, Li Jing Yang, Ren Zhi Zhang Abstract: Coagulation-photocatalytic oxidation process was used for pretreatment of simulated seawater, which had moderate turbidity and more organics. The optimal conditions of PAC/PAM coagulation and TiO 2 photocatalytic oxidation were investigated

  • yu lian quan scientific.net

    Yu Lian Quan scientific.net

    Pretreatment of Seawater by PAC/PAM Coagulation-Photocatalytic Oxidation Process. Authors: Yu Lian Quan, Bi Qing Shi, Li Jing Yang, Ren Zhi Zhang Abstract: Coagulation-photocatalytic oxidation process was used for pretreatment of simulated seawater, which had moderate turbidity and more organics. The optimal conditions of PAC/PAM coagulation and TiO 2 photocatalytic oxidation were investigated

  • impact of dosing order of the coagulant and flocculant

    Impact of dosing order of the coagulant and flocculant

    PAC and Fe 2 (SO 4) 3 were used as the inorganic coagulants, whereas PAM was the flocculant. Conditioners were added to a 50 mL portion of sludge for each conditioning test. The correlation between the conditioner dosage and capillary suction time (CST) is shown in Fig. S1 to characterize filterability of the sludge samples.

  • submerged membrane hybrid systems as pretreatment

    Submerged membrane hybrid systems as pretreatment

    2012-09-01· Three different submerged membrane hybrid systems (SMHSs) namely submerged membrane coagulation hybrid system (SMCHS), submerged membrane adsorption hybrid system (SMAHS), and submerged membrane coagulation–adsorption hybrid system (SMCAHS) were studied as pretreatment systems to seawater reverse osmosis (SWRO).

  • study on the pretreatment of seawater to reduce

    Study on the Pretreatment of Seawater to Reduce

    Study on the Pretreatment of Seawater to Reduce Turbidity and Boron Using Different Alkalizer . Article · November 2011 with 8 Reads How we measure 'reads' A 'read' is counted each time someone

  • the effect of the flocculants pam and pac in the

    The Effect of the Flocculants PAM and PAC in the

    In the treatment of the domestic sewage, there are two types of the water flocculants: the PAM (Polyacrylamide) and the PAC (Polyaluminium Chloride).The domestic sewage is the waste water which is directly discharged by the residents in the daily life, the major component is

  • pretreatment of seawater by fecl_3/pam

    Pretreatment of Seawater by FeCl_3/PAM

    Coagulation-photocatalytic technology was used to pretreat seawater.The results show that at a temperature of 10—25 ℃,pH 7.0—8.0,2.5 mg/L FeCl3,0.75 mg/L PAM,water turbidity removal rate was as high as 96%.When nano-TiO2 catalyst was uesd for the photocatalytic oxidation of organic compounds in seawater in an amount of 1.8 g/L for a light reaction time of 2.5 h,the degradation rate

  • pre-treatment methods for seawater desalination

    Pre-treatment Methods for Seawater Desalination

    In this paper, a brief review on the pretreatment in different industry will be clarified such as pretreatment of seawater, and wastewater treatment. Basically, methods of pretreatment can be

  • papers by author: yu lian quan scientific.net

    Papers by Author: Yu Lian Quan scientific.net

    Pretreatment of Seawater by PAC/PAM Coagulation-Photocatalytic Oxidation Process. Authors: Yu Lian Quan, Bi Qing Shi, Li Jing Yang, Ren Zhi Zhang Abstract: Coagulation-photocatalytic oxidation process was used for pretreatment of simulated seawater, which had moderate turbidity and more organics. The optimal conditions of PAC/PAM coagulation and TiO 2 photocatalytic oxidation were

  • papers by keyword: desalination scientific.net

    Papers by Keyword: Desalination scientific.net

    The corresponding results of PAC were 61.8% and 92.5% respectively. Considering the possibility of greater economic and environmental benefits to nitromethane manufacturers, the ATT pretreatment-desalination-reuse technology would be chosen for pilot-scale experiment.

  • removal of oil pollutants in seawater as pretreatment

    Removal of oil pollutants in seawater as pretreatment

    Coagulation combined with sand filtration is traditionally used as a pretreatment process for RO feed water. Fig. 4 shows removal of OCWOCS by coagulation using FeCl 3 as a flocculant. Removal of OCWOCS was less than 20%, both for fuel oil WOCS and crude oil WOCS. Removal of OCWOCS by coagulation using polyaluminum chloride (PAC) as a

  • combined use of inorganic coagulants and cationic

    Combined use of inorganic coagulants and cationic

    2.2. Sludge conditioning and dewatering. Much of the literature uses the terms flocculation and coagulation interchangeably. Nevertheless, in the field of water/wastewater treatment, it is well accepted that coagulation is the destabilization of a colloidal suspension by charge neutralization, whereas flocculation involves adding a flocculant that clumps the small, destabilized particles

  • pretreatment of seawater by fecl_3/pam

    Pretreatment of Seawater by FeCl_3/PAM

    Coagulation-photocatalytic technology was used to pretreat seawater.The results show that at a temperature of 10—25 ℃,pH 7.0—8.0,2.5 mg/L FeCl3,0.75 mg/L PAM,water turbidity removal rate was as high as 96%.When nano-TiO2 catalyst was uesd for the photocatalytic oxidation of organic compounds in seawater in an amount of 1.8 g/L for a light reaction time of 2.5 h,the degradation rate

  • reverse electrodialysis for power generation using

    Reverse electrodialysis for power generation using

    Reverse electrodialysis for power generation using seawater/municipal wastewater: Effect of coagulation pretreatment. Highlights•Polyaluminum chloride (PAC) increases the resistance of the cation exchange membrane.•The optimum PAC concentration for municipal wastewater coagulation was found.•Increasing the initial pH of the municipal wastewater improved the coagulation performance.•PAC

  • pretreatment of seawater 的翻译结果--cnki翻译助手

    pretreatment of seawater 的翻译结果--cnki翻译助手

    Research on fibrous adsorbent, which was made of polyacrylonitrile fiber by bonding amidoxime and carboxy groups in order to obtain bifunctional group adsorbent, by means of TEM (Transmisstion Electron Microscone) and SEM-EDAX (Energy Dispersive Analysis of X-ray).

  • comparative experiment of coagulant for the

    Comparative Experiment of Coagulant for the

    As a kind of high concentration organic wastewater, coagulation pretreatment for slaughter wastewater should be carried out before biological treatment process.For optimal treatment effect, the choice of coagulant was crucial.In this paper,FeSO4.7H2O,FeCl3,Al2(SO4)3,PAC were taken as coagulant and PAM was taken as coagulant aid. The effect of...

  • pretreatment in reverse osmosis seawater desalination:

    Pretreatment in Reverse Osmosis Seawater Desalination:

    Pretreatment in Reverse Osmosis Seawater Desalination: A Short Review Ramesh Valavala1, Jinsik Sohn2†, Jihee Han2, Namguk Her3, Yeomin Yoon1 Department of Civil and Environmental Engineering, University of South Carolina, Columbia, SC 29208, USA Department of Civil and Environmental Engineering, Kookmin University, Seoul 136-702, Korea 3 Department of Chemistry and

  • study on the pretreatment of seawater to reduce

    Study on the Pretreatment of Seawater to Reduce

    Study on the Pretreatment of Seawater to Reduce Turbidity and Boron Using different alkalizer . By Lei Zhou, Shouzhi Yi, Shuang Li and Suhong Zhong. Abstract. Abstract. Alkalizer or coagulation and alkalizer technology were adopted to pretreat seawater in the study. Turbidity removal was investigated with different pH, mixing time,and mixing speed. The A was the best by contrasting alkalizer A

  • study of environmentally-friendly pretreatment technology

    Study of Environmentally-friendly Pretreatment Technology

    Seawater desalination plants take seawater through the water intake facility, remove any substances that would clog pores of the RO membranes such as suspended solids in seawater in the pretreatment facility before pressurizing the seawater in the pressure booster and supplying it to the RO membranes. The permeate water that desalinates through

  • the effect of wastewater pretreatment on nanofiltration

    The effect of wastewater pretreatment on nanofiltration

    PAC can remove organic or inorganic contaminants from natural waters by adsorption. It can also remove a high level of impurities (Gao et al. 2011). So the combination of chemical coagulation and PAC adsorption pretreatment can reduce fouling (Matsui et al. 2009).

  • pac and pam in wastewater treatment, pac and pam in

    Pac And Pam In Wastewater Treatment, Pac And Pam In

    Alibaba offers 303 pac and pam in wastewater treatment products. About 25% of these are paper chemicals, 22% are petroleum additives, and 22% are plastic auxiliary agents. A wide variety of pac and pam in wastewater treatment options are available to you, such as water treatment chemicals, coating auxiliary agents, and paper chemicals.

  • coagulation and flocculation in water and wastewater

    Coagulation and Flocculation in Water and Wastewater

    Coagulation and Flocculation in Water and Wastewater Treatment. Coagulation and flocculation are an essential part of drinking water treatment as well as wastewater treatment. This article provides an overview of the processes and looks at the latest thinking.

  • physico-chemical pretreatment to seawater reverse osmosis

    Physico-Chemical Pretreatment to Seawater Reverse Osmosis

    PAC (James Cumming & Sons Pty Ltd., Australia) are given elsewhere [8]. For the adsorption experiments, one gram of PAC was added to 1 L of seawater and stirred with a mechanical stirrer at 100 rpm for one hour. Membrane filtration used in this study as pretreatment was a dead-end cell type.

  • study on pretreatment of dissolved pollutants in heavy

    Study on Pretreatment of Dissolved Pollutants in Heavy

    Study on Pretreatment of Dissolved Pollutants in Heavy Oil Wastewater Pei Jiang1,2*, Xiaoping Xu1, Hanpei Yang3, Hanfei Cheng2, Gaochuan Zhang2 and Xueyu Wei1 1School of Architecture and Civil Engineering, China 2MCC Huatian Engineering and Technology Corporation, China 3College of Environment, China Introduction China has abundant heavy oil resources, with an annual output of

  • chemical pretreatment for ro and nf

    chemical pretreatment for ro and nf

    Membrane Technology Pretreatment of for wastewater treatment such as conventional Seawater pretreatment by using coagulation, flocculation, It is noted that conventional pretreatment may be sedimentation and filter, membrane technology by using required to prevent fouling in a membrane for RO, but MF, UF and NF, granular activated carbon

  • sciencecentral

    ScienceCentral

    Among these pretreatment techniques, coagulation is the most popular process to control membrane fouling due to colloids and organic matters in the feed water. Using coagulation, the colloidal particles aggregate each other to form chemical flocs. The flocs have lower hydraulic resistance than individual particles, leading to reduced membrane fouling. Since this technique is inexpensive and

  • assessment of pre-treatment to seawater reverse osmosis

    Assessment of pre-treatment to seawater reverse osmosis

    A post treatment of reverse osmosis after a pretreatment of GAC and anthracite biofilters showed a reduction in normalized flux decline (J/Jo) from 0.22 to 0.12 and 0.35 to 0.21 during the first 20 hours respectively. The RO flux for seawater declined at a faster rate and continued even after 3 days when no pretreatment was provided. Based on

  • pretreatment of antibiotic wastewater by coagulation

    Pretreatment of antibiotic wastewater by coagulation

    Process of coagulation-Fenton oxidation was used to treat antibiotic wastewater, and the best condition of coagulation and oxidation was selected. Under the conditions of pH 8, the effect of the coagulating treatment of wastewater was better when PAC and PAM were used as coagulants with the feeding amount of 400 mg/L and 12 mg/L respectively.

  • dissolved air flotation for membrane pretreatment

    Dissolved Air Flotation for Membrane Pretreatment

    By J.E. Farmerie. Many references can be found in water industry literature to support the need for membrane pretreatment. This is due to the fact that the dissolved contaminants in non seawater sources may not allow the system to use microfiltration and ultrafiltration (MF/UF) membranes alone to meet the requirements of the Safe Drinking Water Act.

  • coagulation-flocculation sswm find tools

    Coagulation-Flocculation SSWM Find tools

    Coagulation-flocculation is a chemical water treatment technique typically applied prior to sedimentation and filtration (e.g. rapid sand filtration) to enhance the ability of a treatment process to remove particles. Coagulation is a process used to neutralise charges and form a gelatinous mass to trap (or bridge) particles thus forming a mass large enough to settle or be trapped in the filter.

  • uf pre-treatment: membranes combat fouling risk

    UF pre-treatment: Membranes combat fouling risk

    2010-12-02· This results in seawater with high salinity, high organic content and microbiological activity, posing a very high fouling risk for the RO membranes. A carefully designed pre-treatment with state of the art technology is absolutely essential to ensure economical plant operation. In difficult waters ultrafiltration (UF) has proven to be the best

  • performance of flocculation titanium salts for seawater

    Performance of flocculation titanium salts for seawater

    References. A. Al-Amoudi, R.W. Lovitt, Fouling strategies and the cleaning system of NF membranes and factors affecting cleaning efficiency, J. Membr.

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