Solute release from weathering of spent mushroom substrate under controlled conditions

Mingxin Guo, Jon Chorover

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

Weathering of piled material in the field is a popular method to treat spent mushroom substrate (SMS) before reuse. During the weathering process, rainfall and snowmelt pass through SMS piles and a large amount of solutes is released in the leachate. To investigate solute release patterns, the field weathering process was simulated under controlled conditions in the laboratory. Fresh SMS was packed in an acrylic column (20 cm i.d.) to 150 cm height and leached intermittently with a cumulative total of 230 cm of deionized water over 180 days. Leachate was collected and analyzed for dissolved organic carbon (DOC), dissolved organic nitrogen (DON), electrical conductivity (EC), and inorganic salts. Solute release patterns were described using first order models, and total released solutes were calculated. The SMS leachate had DOC, DON and EC values ranging from 450 to 15,500 mg L-1 50 to 1,700 mg L-1, and 3 to 50 dS m-1, respectively. The major inorganic cations were K+, Na+, Ca 2+, and Mg2+ and NH+, and anions were CT and SO42-. Release of DOC, DON, and bivalent cations Ca2+ and Mg2+ were described by a first order Exponential Rise to Maximum model, while releases of monovalent ions Cl-, K+, Na+ and NH 4+ were described as a first order Sigmoidal Logistic process, and SO42- release was best modeled by a Sigmoidal Chapman equation. Following six months and 230 cm applied water, 3.1 kg of DOC, 0.58 kg of dissolved N, and 8.6 kg of inorganic salts were leached per cubic meter of bulk SMS (220 kg oven dry mass). Weathering of SMS involves a significant removal of nutrients from the composted material, which can contribute to pollution of soil and groundwater.

Original languageEnglish (US)
Pages (from-to)225-234
Number of pages10
JournalCompost Science and Utilization
Volume12
Issue number3
StatePublished - Jun 2004

Fingerprint

spent mushroom compost
mushroom
weathering
solutes
solute
dissolved organic carbon
substrate
dissolved organic nitrogen
leachates
leachate
inorganic salts
inorganic salt
electrical conductivity
cations
cation
groundwater contamination
snowmelt
soil pollution
ovens
anions

ASJC Scopus subject areas

  • Soil Science
  • Waste Management and Disposal
  • Ecology

Cite this

Solute release from weathering of spent mushroom substrate under controlled conditions. / Guo, Mingxin; Chorover, Jon.

In: Compost Science and Utilization, Vol. 12, No. 3, 06.2004, p. 225-234.

Research output: Contribution to journalArticle

@article{e2452e374e3a401f9e3e4aaf05d1747f,
title = "Solute release from weathering of spent mushroom substrate under controlled conditions",
abstract = "Weathering of piled material in the field is a popular method to treat spent mushroom substrate (SMS) before reuse. During the weathering process, rainfall and snowmelt pass through SMS piles and a large amount of solutes is released in the leachate. To investigate solute release patterns, the field weathering process was simulated under controlled conditions in the laboratory. Fresh SMS was packed in an acrylic column (20 cm i.d.) to 150 cm height and leached intermittently with a cumulative total of 230 cm of deionized water over 180 days. Leachate was collected and analyzed for dissolved organic carbon (DOC), dissolved organic nitrogen (DON), electrical conductivity (EC), and inorganic salts. Solute release patterns were described using first order models, and total released solutes were calculated. The SMS leachate had DOC, DON and EC values ranging from 450 to 15,500 mg L-1 50 to 1,700 mg L-1, and 3 to 50 dS m-1, respectively. The major inorganic cations were K+, Na+, Ca 2+, and Mg2+ and NH+, and anions were CT and SO42-. Release of DOC, DON, and bivalent cations Ca2+ and Mg2+ were described by a first order Exponential Rise to Maximum model, while releases of monovalent ions Cl-, K+, Na+ and NH 4+ were described as a first order Sigmoidal Logistic process, and SO42- release was best modeled by a Sigmoidal Chapman equation. Following six months and 230 cm applied water, 3.1 kg of DOC, 0.58 kg of dissolved N, and 8.6 kg of inorganic salts were leached per cubic meter of bulk SMS (220 kg oven dry mass). Weathering of SMS involves a significant removal of nutrients from the composted material, which can contribute to pollution of soil and groundwater.",
author = "Mingxin Guo and Jon Chorover",
year = "2004",
month = "6",
language = "English (US)",
volume = "12",
pages = "225--234",
journal = "Compost Science and Utilization",
issn = "1065-657X",
publisher = "JG Press Inc.",
number = "3",

}

TY - JOUR

T1 - Solute release from weathering of spent mushroom substrate under controlled conditions

AU - Guo, Mingxin

AU - Chorover, Jon

PY - 2004/6

Y1 - 2004/6

N2 - Weathering of piled material in the field is a popular method to treat spent mushroom substrate (SMS) before reuse. During the weathering process, rainfall and snowmelt pass through SMS piles and a large amount of solutes is released in the leachate. To investigate solute release patterns, the field weathering process was simulated under controlled conditions in the laboratory. Fresh SMS was packed in an acrylic column (20 cm i.d.) to 150 cm height and leached intermittently with a cumulative total of 230 cm of deionized water over 180 days. Leachate was collected and analyzed for dissolved organic carbon (DOC), dissolved organic nitrogen (DON), electrical conductivity (EC), and inorganic salts. Solute release patterns were described using first order models, and total released solutes were calculated. The SMS leachate had DOC, DON and EC values ranging from 450 to 15,500 mg L-1 50 to 1,700 mg L-1, and 3 to 50 dS m-1, respectively. The major inorganic cations were K+, Na+, Ca 2+, and Mg2+ and NH+, and anions were CT and SO42-. Release of DOC, DON, and bivalent cations Ca2+ and Mg2+ were described by a first order Exponential Rise to Maximum model, while releases of monovalent ions Cl-, K+, Na+ and NH 4+ were described as a first order Sigmoidal Logistic process, and SO42- release was best modeled by a Sigmoidal Chapman equation. Following six months and 230 cm applied water, 3.1 kg of DOC, 0.58 kg of dissolved N, and 8.6 kg of inorganic salts were leached per cubic meter of bulk SMS (220 kg oven dry mass). Weathering of SMS involves a significant removal of nutrients from the composted material, which can contribute to pollution of soil and groundwater.

AB - Weathering of piled material in the field is a popular method to treat spent mushroom substrate (SMS) before reuse. During the weathering process, rainfall and snowmelt pass through SMS piles and a large amount of solutes is released in the leachate. To investigate solute release patterns, the field weathering process was simulated under controlled conditions in the laboratory. Fresh SMS was packed in an acrylic column (20 cm i.d.) to 150 cm height and leached intermittently with a cumulative total of 230 cm of deionized water over 180 days. Leachate was collected and analyzed for dissolved organic carbon (DOC), dissolved organic nitrogen (DON), electrical conductivity (EC), and inorganic salts. Solute release patterns were described using first order models, and total released solutes were calculated. The SMS leachate had DOC, DON and EC values ranging from 450 to 15,500 mg L-1 50 to 1,700 mg L-1, and 3 to 50 dS m-1, respectively. The major inorganic cations were K+, Na+, Ca 2+, and Mg2+ and NH+, and anions were CT and SO42-. Release of DOC, DON, and bivalent cations Ca2+ and Mg2+ were described by a first order Exponential Rise to Maximum model, while releases of monovalent ions Cl-, K+, Na+ and NH 4+ were described as a first order Sigmoidal Logistic process, and SO42- release was best modeled by a Sigmoidal Chapman equation. Following six months and 230 cm applied water, 3.1 kg of DOC, 0.58 kg of dissolved N, and 8.6 kg of inorganic salts were leached per cubic meter of bulk SMS (220 kg oven dry mass). Weathering of SMS involves a significant removal of nutrients from the composted material, which can contribute to pollution of soil and groundwater.

UR - http://www.scopus.com/inward/record.url?scp=6344253110&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=6344253110&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:6344253110

VL - 12

SP - 225

EP - 234

JO - Compost Science and Utilization

JF - Compost Science and Utilization

SN - 1065-657X

IS - 3

ER -