Comparison of the effects of conventional organic amendments and biochar on the chemical, physical and microbial properties of coal fly ash as a plant growth medium

Belyaeva, Oxana N.; Haynes, Richard

doi:10.1007/s12665-011-1424-y

Cited by 70 publications

(26 citation statements)

References 22 publications

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“…Although WHC of raw FA at 40°C is lower than those of DGS and AS, basic treatment, chitosan-, alginate-, and guanidine-treatment increased WHC of FA 8-16% higher than those of DGS and AS. Increase of WHC of FA by organic amendment with FA is also reported [50]. Such WHC increase by organic amendment seems to be explained firstly by size fraction change.…”

Section: Whc Of Soils Raw Fa and Treated Fasupporting

confidence: 53%

Raw and Treated Coal Fly Ash Amendment Aiming for Water Holding Capacity Adjustment of Natural Soils

Lin¹,

Takahashi²

2015

JRST

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ABSTRACT:The effects of raw and treated coal fly ash (FA) amending on water holding capacity (WHC) of natural soils were investigated. Apatite mineral was synthesized on FA particles or FA surface was modified by chitosan, sodium alginate, or guanidine hydrochloride. WHC was measured as cumulative water retention during 12-hour drying experiments at 40°C or under natural condition. Experimental results suggest that raw FA amendment at lower temperature is preferable to increase soil WHC. On the other hand, inorganic and organic treatments gave FA positive dependency on temperature. Such treatments are more effective to increase soil WHC at higher temperature. This research found no correlation between WHC and water repellency of FA.

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Section: Whc Of Soils Raw Fa and Treated Fasupporting

confidence: 53%

Raw and Treated Coal Fly Ash Amendment Aiming for Water Holding Capacity Adjustment of Natural Soils

Lin¹,

Takahashi²

2015

JRST

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“…Hossain et al (2010) and Chan et al (2008b) also found that the yield increased with biochar application in acidic soil. However, negative effect of biochar addition on plant growth also been found in several studies (Asai et al 2009;Belyaeva and Haynes 2012;Jones et al 2012). Gaskin et al (2010) discovered that grain yields decreased with 22 t/ha biochar rate in the fertilized treatments.…”

Section: Introductionmentioning

confidence: 75%

Effects of biochar application on Suaeda salsa growth and saline soil properties

Sun

Shao

et al. 2016

Environ Earth Sci

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Pot experiments were conducted to study the effects of biochar application rates (5, 10, 20 g/kg) and types of wheat straw biochar (WS), corn stalk biochar (CS) and peanut shell biochar (PS) on Suaeda salsa (S. salsa) growth and properties of saline soil in Yellow River Delta. It was found that S. salsa yield increased from 11.7 to 115 % under WS application at a range of 5-10 g/kg compared with control. As biochar rate increased to 20 g/ kg, the increment decreased to 102 %. The underground biomass of S. salsa only increased at 20 g/kg rate. The S. salsa growth respond to biochar followed the order of PS [ WS [ CS. Biochar application generally reduced saline soil pH and the effect was more obvious for WS. The content of total organic matter increased significantly at biochar rate of 10-20 g/kg. WS at higher application rate (20 g/kg) significantly increased available phosphorus content. At the same time, CS increased more available phosphorus content while PS decreased more of exchange sodium percentage. In generally, biochar application improved saline soil quality and enhanced plant growth although these effects should be tested in long-term period.

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“…Coal based thermal power plants generate fly ash (FA) as the main industrial waste product, approximately 70 -75% (Belyaeva and Haynes, 2012) and it has been recognized as an environmental hazard across the globe. India ranks third among the list of countries which generate high amount of FA, namely China, United States, Europe, South Africa, Australia, Japan, Italy, and Greece (Ram et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

“…Furthermore proper rehabilitation programmes also serve the purpose of generation of bio-resource for local villagers and thus elevate their socio-economic status. Thirdly these would help in buildup of an aesthetically pleasing landscape and places for tourist attraction (Belyaeva and Haynes, 2012;Pandey, 2012b). In a nutshell, an engineered sustainable ecosystem can be developed with the help of tolerant plant species which would also alleviate the problems.…”

Section: Introductionmentioning

confidence: 99%

Revegetation of Fly Ash ‒ A Review With Emphasis on Grass-Legume Plantation and Bioaccumulation of Metals

Maiti¹

2016

Appl Ecol Env Res

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Abstract. Uninterrupted generation of fly ash by the coal based thermal power plants and its dumping has lead to steady encroachment of useful land in India. The deleterious effects of fly ash on the nearby environment are inevitable due to its fine texture and presence of toxic metals. Thus, proper revegetation programme of the sites are highly desirable due to their continuance in being the part of landscape. This paper conglomerates all the issues which should be taken into account to prevent groundwater contamination and increase phytostabilization of metals. An insight to the past and the prevailing restoration scenario will help in selecting of plant species for biomass production. Primarily, an integrated approach towards revegetation is necessary which comprises native and exotic grass-legume species, readily available composts, green manure, and mulches. The paucity of studies in relation to the long term changes in fly ash due to vegetation is to be permeated through regular analysis of substrate nutrient status, extent of nutrient loss, bioavailable toxic metals, in restoration sites. The range of methodologies and indexes discussed here will benefit the future management approaches of fly ash with emphasis on phytoremediation of trace metals, development of aesthetically pleasant landscape and productivity.

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Comparison of the effects of conventional organic amendments and biochar on the chemical, physical and microbial properties of coal fly ash as a plant growth medium

Cited by 70 publications

References 22 publications

Raw and Treated Coal Fly Ash Amendment Aiming for Water Holding Capacity Adjustment of Natural Soils

Raw and Treated Coal Fly Ash Amendment Aiming for Water Holding Capacity Adjustment of Natural Soils

Effects of biochar application on Suaeda salsa growth and saline soil properties

Revegetation of Fly Ash ‒ A Review With Emphasis on Grass-Legume Plantation and Bioaccumulation of Metals

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