Biodegradation and sorption properties of polydisperse acrylate polymers

Bruce Rittmann, Julie A. Sutfin, Benjamin Henry

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

Polyacrylate (PA), which is widely used in disposable diapers, is synthesized by polymerization and cross-linking of acrylate. During the synthesis, 3-6% of the polyacrylate polymers is not incorporated into the absorbent material, but remains soluble. If the soluble PA is mobilized from a landfill, it could enter the groundwater. Therefore, the biodegradation and adsorption properties of soluble polymers contained in PA are determined in this study. The soluble PA is highly polydisperse, and the fraction tested has a weight-average molecular-weight of 16,700 and a range extending from 103 to 105. Sand-column tracer tests show that about 1% of the polyacrylate is unadsorbed, but the remainder has a retardation factor that averages at least 58. Biodegradation kinetics are determined in completely mixed biofilm reactors having a methanogenic consortium grown on glucose. The polyacrylate fraction, as well as glucose and acrylate, are removed and mineralized to CO2. The Monod parameters for the polyacrylate are: maximum specific rate of substrate utilization = 0.0016 gC/g biomass-day, and half-maximum-rate concentration = 0.79 gC/m3. Although these kinetics are much slower than for glucose and acrylate, significant degradation and mineralization are observed.

Original languageEnglish (US)
Pages (from-to)181-191
Number of pages11
JournalBiodegradation
Volume2
Issue number3
DOIs
StatePublished - Sep 1991
Externally publishedYes

Fingerprint

Biodegradation
Polyacrylates
Sorption
biodegradation
Polymers
glucose
sorption
polymer
Glucose
Waste Disposal Facilities
kinetics
Groundwater
Biofilms
polymerization
Polymerization
Biomass
Adsorption
biofilm
landfill
Molecular Weight

Keywords

  • acrylate
  • adsorption
  • biodegradation kinetics
  • methanogenic consortium
  • polyacrylate
  • polydisperse
  • sand

ASJC Scopus subject areas

  • Biotechnology

Cite this

Biodegradation and sorption properties of polydisperse acrylate polymers. / Rittmann, Bruce; Sutfin, Julie A.; Henry, Benjamin.

In: Biodegradation, Vol. 2, No. 3, 09.1991, p. 181-191.

Research output: Contribution to journalArticle

Rittmann, Bruce ; Sutfin, Julie A. ; Henry, Benjamin. / Biodegradation and sorption properties of polydisperse acrylate polymers. In: Biodegradation. 1991 ; Vol. 2, No. 3. pp. 181-191.
@article{ed9be83d7d314c6c9be090262c461a7d,
title = "Biodegradation and sorption properties of polydisperse acrylate polymers",
abstract = "Polyacrylate (PA), which is widely used in disposable diapers, is synthesized by polymerization and cross-linking of acrylate. During the synthesis, 3-6{\%} of the polyacrylate polymers is not incorporated into the absorbent material, but remains soluble. If the soluble PA is mobilized from a landfill, it could enter the groundwater. Therefore, the biodegradation and adsorption properties of soluble polymers contained in PA are determined in this study. The soluble PA is highly polydisperse, and the fraction tested has a weight-average molecular-weight of 16,700 and a range extending from 103 to 105. Sand-column tracer tests show that about 1{\%} of the polyacrylate is unadsorbed, but the remainder has a retardation factor that averages at least 58. Biodegradation kinetics are determined in completely mixed biofilm reactors having a methanogenic consortium grown on glucose. The polyacrylate fraction, as well as glucose and acrylate, are removed and mineralized to CO2. The Monod parameters for the polyacrylate are: maximum specific rate of substrate utilization = 0.0016 gC/g biomass-day, and half-maximum-rate concentration = 0.79 gC/m3. Although these kinetics are much slower than for glucose and acrylate, significant degradation and mineralization are observed.",
keywords = "acrylate, adsorption, biodegradation kinetics, methanogenic consortium, polyacrylate, polydisperse, sand",
author = "Bruce Rittmann and Sutfin, {Julie A.} and Benjamin Henry",
year = "1991",
month = "9",
doi = "10.1007/BF00124492",
language = "English (US)",
volume = "2",
pages = "181--191",
journal = "Biodegradation",
issn = "0923-9820",
publisher = "Springer Netherlands",
number = "3",

}

TY - JOUR

T1 - Biodegradation and sorption properties of polydisperse acrylate polymers

AU - Rittmann, Bruce

AU - Sutfin, Julie A.

AU - Henry, Benjamin

PY - 1991/9

Y1 - 1991/9

N2 - Polyacrylate (PA), which is widely used in disposable diapers, is synthesized by polymerization and cross-linking of acrylate. During the synthesis, 3-6% of the polyacrylate polymers is not incorporated into the absorbent material, but remains soluble. If the soluble PA is mobilized from a landfill, it could enter the groundwater. Therefore, the biodegradation and adsorption properties of soluble polymers contained in PA are determined in this study. The soluble PA is highly polydisperse, and the fraction tested has a weight-average molecular-weight of 16,700 and a range extending from 103 to 105. Sand-column tracer tests show that about 1% of the polyacrylate is unadsorbed, but the remainder has a retardation factor that averages at least 58. Biodegradation kinetics are determined in completely mixed biofilm reactors having a methanogenic consortium grown on glucose. The polyacrylate fraction, as well as glucose and acrylate, are removed and mineralized to CO2. The Monod parameters for the polyacrylate are: maximum specific rate of substrate utilization = 0.0016 gC/g biomass-day, and half-maximum-rate concentration = 0.79 gC/m3. Although these kinetics are much slower than for glucose and acrylate, significant degradation and mineralization are observed.

AB - Polyacrylate (PA), which is widely used in disposable diapers, is synthesized by polymerization and cross-linking of acrylate. During the synthesis, 3-6% of the polyacrylate polymers is not incorporated into the absorbent material, but remains soluble. If the soluble PA is mobilized from a landfill, it could enter the groundwater. Therefore, the biodegradation and adsorption properties of soluble polymers contained in PA are determined in this study. The soluble PA is highly polydisperse, and the fraction tested has a weight-average molecular-weight of 16,700 and a range extending from 103 to 105. Sand-column tracer tests show that about 1% of the polyacrylate is unadsorbed, but the remainder has a retardation factor that averages at least 58. Biodegradation kinetics are determined in completely mixed biofilm reactors having a methanogenic consortium grown on glucose. The polyacrylate fraction, as well as glucose and acrylate, are removed and mineralized to CO2. The Monod parameters for the polyacrylate are: maximum specific rate of substrate utilization = 0.0016 gC/g biomass-day, and half-maximum-rate concentration = 0.79 gC/m3. Although these kinetics are much slower than for glucose and acrylate, significant degradation and mineralization are observed.

KW - acrylate

KW - adsorption

KW - biodegradation kinetics

KW - methanogenic consortium

KW - polyacrylate

KW - polydisperse

KW - sand

UR - http://www.scopus.com/inward/record.url?scp=0026394578&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0026394578&partnerID=8YFLogxK

U2 - 10.1007/BF00124492

DO - 10.1007/BF00124492

M3 - Article

C2 - 1368962

AN - SCOPUS:0026394578

VL - 2

SP - 181

EP - 191

JO - Biodegradation

JF - Biodegradation

SN - 0923-9820

IS - 3

ER -