china anionic polyacrylamide in wastewater treatment
china anionic polyacrylamide in wastewater treatment
china anionic polyacrylamide in wastewater treatment
china anionic polyacrylamide in wastewater treatment
china anionic polyacrylamide in wastewater treatment
polyacrylamide degradation and its implications in

Polyacrylamide degradation and its implications in

High molecular weight (10 6 ¨C3 ¡Á 10 7 Da) polyacrylamide (PAM) is commonly used as a flocculant in water and wastewater treatment, as a soil conditioner, and as a viscosity modifier and...

Get Price
a microblock structure type of anionic flocculant for

A microblock structure type of anionic flocculant for

The anionic microblock structure in TPAM could greatly improve the ability of charge neutralization, electrical patching, and bridging. After the hematite wastewater was conditioned by TPAS with this novel anionic microblock structure, the generated hematite flocs had larger particle size and denser structure.

Get Price
fabricating an anionic polyacrylamide (apam) with an anionic

Fabricating an anionic polyacrylamide (APAM) with an anionic

Materials The monomer AM and SAS were purchased from Chongqing Lanjie Tap Water Company (Chongqing, China). Urea [CO (NH2)2] and initiator 2,2¡ä-azobis [2- (2-imidazolin-2-yl)propane]dihydrochloride (VA-044) were sourced from Apotheker Chemical Reagent Co., Ltd. (Chendou, China).

Get Price
fabricating an anionic polyacrylamide (apam) with an anionic

Fabricating an anionic polyacrylamide (APAM) with an anionic

anionic polyacrylamide with high occulation performance have been developed and applied in the waste water treat-ment.16,17 However, the defect of the APAM, namely, the disor-dered and random distribution of anionic units in the polymer chain, seriously restricts the further enhancement of the solid-water separation ability.

Get Price
a review of treating oily wastewater

A review of treating oily wastewater

Zeng et al. (2007) using aggregation zinc silicate (PISS) and anionic polyacrylamide (A-PAM) composite flocculant oily wastewater treatment, improved oil removal efficiency up to 99%, suspended solids concentration was less than 5 mg/L, and met back water requirements. However, this method has higher costs, could easily lead to secondary

Get Price
(pdf) polyacrylamide for wastewater treatment

(PDF) Polyacrylamide for wastewater treatment

Polyacrylamide and its co-polymers are used as flocculants or coagulants in industrial wastewater treatment .Homo-polymer is used in this application and can be either nonionic, cationic or...

Get Price
molecular mechanisms of ultrafiltration membrane fouling in

Molecular Mechanisms of Ultrafiltration Membrane Fouling in

Polymer (i.e., anionic polyacrylamide (APAM)) fouling of polyvinylidene fluoride (PVDF) ultrafiltration (UF) membranes and its relationships to intermolecular interactions were investigated using atomic force microscopy (AFM). Distinct relations were obtained between the AFM force spectroscopy measurements and calculated fouling resistance over the concentration polarization layer (CPL) and

Get Price
cationic polyacrylamide copolymers (pams): environmental half

Cationic polyacrylamide copolymers (PAMs): environmental half

Background Cationic polyacrylamide copolymers (PAMs) are used for sludge dewatering in municipal waste water treatment and might enter the environment by spreading of the sludge on agricultural land. Concern has been expressed since little is known about the degradation of PAMs in soils. To obtain detailed information on the polymer¡¯s fate in the soil compartment, the degradation of 14C

Get Price
the use of polymers in the flotation treatment of wastewater

The Use of Polymers in the Flotation Treatment of Wastewater

Flotation could achieve up to 95% removal. A DAF system has been applied to the treatment of poultry slaughterhouse wastewater [ 25 ]. In a two-stage approach with the addition of 24 mg/L of poly (aluminium chloride) (PAC) and 1.5 mg/L of an anionic polymer it was possible to remove 99% of the oil and grease.

Get Price
the use of polymers in the flotation treatment of wastewater

The Use of Polymers in the Flotation Treatment of Wastewater

When a hydrophobic analogue, such as a copolymer of acrylamide and trimethylaminoethylacrylamide chloride (PDMAEMA), which has the charge linked to a methacrylamide unit via a propylene bridge (as shown in Figure 1B) was used, the required polymer dose was more than halved (15 mg L versus 40 mg L). This was interpreted as the hydrophobicity / /

Get Price