Abstract
In this research, the effects of bamboo charcoal on soil contaminant accumulation, soil fertility and plant growth were investigated. The results indicated that sludge composted with bamboo charcoal (BCS) significantly increased plant growth and decreased the mobility of Zn, Cu and polycyclic aromatic hydrocarbons (PAHs), compared with the composted sludge without bamboo charcoal (CS), with lower absorption and less accumulation of contaminants by the plants. Concentrations of Cu in turfgrass treated with CS were 11.7-23.4% higher than those of turfgrass treated with BCS. Concentrations of Zn in turfgrass treated with CS were 14.2-25.9% higher than those of turfgrass treated with BCS. The concentration of sigma 16PAHs (total contents of 16 PAHs that are listed by USEPA as priority pollutants for remediation based on their persistence and carcinogenic potential) in ryegrass grown in yellow loamy soil amended with CS was 680 microg kg(-1)) and was higher than that of ryegrass treated with BCS (only 439 microg kg(-1)). The biomass of fescue in BCS-treated soils increased by 13-16% compared with that of fescue in CS-treated soil. The biomass of ryegrass in BCS-treated soil was 20-27% higher than that in CS-treated soil. Chlorophyll content in turfgrass grown in CS-treated soil was lower than that in grass grown in BCS-treated soil. Compared with the control, chlorophyll contents in plants grown in soil with CS increased by about 13-22%, whereas those in plants grown in soil with BCS increased by about 20-32%.
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Claims 11
Claim · model-written summary
Bamboo charcoal sludge compost increased plant growth relative to compost without charcoal.
Verbatim
e0“sludge composted with bamboo charcoal (BCS) significantly increased plant growth and decreased the mobility of Zn, Cu and polycyclic aromatic hydrocarbons (PAHs), compared with the composted sludge without bamboo charcoal (CS)”
e1“with lower absorption and less accumulation of contaminants by the plants”
Claim · model-written summary
Charcoal compost decreased Zn, Cu and PAH mobility.
- Treatment
- bamboo charcoal additiont0
- Outcome
- mobility of Zn, Cu and polycyclic aromatic hydrocarbons (PAHs)e0
- Direction
- decreasede0
- Comparator
- composted sludge without bamboo charcoal (CS)e0
Not reportedTaxon
Verbatim
e0“decreased the mobility of Zn, Cu and polycyclic aromatic hydrocarbons (PAHs), compared with the composted sludge without bamboo charcoal (CS)”
t0“bamboo charcoal addition”
Claim · model-written summary
Charcoal compost reduced plant contaminant absorption and accumulation.
- Taxon
- plantsViridiplantaee0
- Treatment
- bamboo charcoal additiont0
- Outcome
- absorption and less accumulation of contaminantse0
- Direction
- lowere0
Not reportedComparator
Verbatim
e0“with lower absorption and less accumulation of contaminants by the plants”
t0“bamboo charcoal addition”
Claim · model-written summary
Turfgrass Cu concentration with compost without charcoal was 11.7-23.4% higher.
Verbatim
e0“Concentrations of Cu in turfgrass treated with CS were 11.7-23.4% higher than those of turfgrass treated with BCS.”
Claim · model-written summary
Turfgrass Zn concentration with compost without charcoal was 14.2-25.9% higher.
Verbatim
e0“Concentrations of Zn in turfgrass treated with CS were 14.2-25.9% higher than those of turfgrass treated with BCS.”
Claim · model-written summary
Ryegrass PAH concentration was 680 microg kg(-1) with CS and 439 microg kg(-1) with BCS.
- Treatment
- CSe0
- Outcome
- concentration of sigma 16PAHse0
- Direction
- highere0
- Value
- 680 microg kg(-1)e0
- Qualifier
- 439 microg kg(-1)e0
- Comparator
- BCSe0
- Setting
- yellow loamy soile0
LoliumOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The concentration of sigma 16PAHs (total contents of 16 PAHs that are listed by USEPA as priority pollutants for remediation based on their persistence and carcinogenic potential) in ryegrass grown in yellow loamy soil amended with CS was 680 microg kg(-1)) and was higher than that of ryegrass treated with BCS (only 439 microg kg(-1)).”
Claim · model-written summary
BCS increased fescue biomass by 13-16% relative to CS.
Verbatim
e0“The biomass of fescue in BCS-treated soils increased by 13-16% compared with that of fescue in CS-treated soil.”
Claim · model-written summary
BCS raised ryegrass biomass by 20-27% relative to CS.
- Treatment
- BCS-treated soile0
- Outcome
- biomasse0
- Direction
- highere0
- Value
- 20-27%e0
- Comparator
- CS-treated soile0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The biomass of ryegrass in BCS-treated soil was 20-27% higher than that in CS-treated soil.”
Claim · model-written summary
CS treated turfgrass had lower chlorophyll than BCS treated grass.
Verbatim
e0“Chlorophyll content in turfgrass grown in CS-treated soil was lower than that in grass grown in BCS-treated soil.”
Claim · model-written summary
CS increased plant chlorophyll by about 13-22% relative to control.
Verbatim
e0“Compared with the control, chlorophyll contents in plants grown in soil with CS increased by about 13-22%”
Claim · model-written summary
BCS increased plant chlorophyll by about 20-32% relative to control.
- Taxon
- plantsViridiplantaee0
- Treatment
- BCSe0
- Outcome
- chlorophyll contentse1
- Direction
- increasede0
- Value
- 20-32%e0
Not reportedComparator
Verbatim
e0“those in plants grown in soil with BCS increased by about 20-32%”
e1“chlorophyll contents in plants grown in soil with CS”
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See all 39 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.