The study of fly ash effect as fertilizer

Anggarani, B O; Rasgianti, R; Triani, Meiri; Sitanggang, Ruly Bayu

doi:10.1088/1757-899x/1098/5/052019

Cited by 2 publications

(1 citation statement)

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“…Choice of biomass ashes as appropriate raw material: Biomass ashes are the primary waste material generated during the energy (heat and power) production at cogeneration plants (Masto et al, 2015). Biomass ashes (fly and bottom ashes), if securely and adequately applied into the soil, may play a significant role in plant nutrition and soil improvement as well as nutrient cycling favorable for agriculture, gardening, and greenery landscaping purposes (Anggarani et al, 2021;Bhattacharya and Chattopadhyay, 2002;Jain et al, 20212;Romdhane et al, 2021). The composition of wood ashes incorporates a mixture of chemical elements mainly in the form of oxides, hydroxides, carbonates, and silicates (Demeyer et al, 2001).…”

Section: Case Example In Elaboration Of Peat-free Soil Amendmentmentioning

confidence: 99%

On the Way to Sustainable Peat-Free Soil Amendments

Vincevica-Gaile¹,

Stankeviča²,

Kļaviņš³

et al. 2021

SJA

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Increasing global population and urbanization demands enhanced food and feed crop production, but due to several reasons, the areas of fertile agricultural lands are reducing worldwide. The market of growing substrates, soil amendments, and improvers still is based on peat extraction and processing. Due to peat's fossil origin, it can be considered environmentally unfriendly and unsustainable. Seeking peat-substituting materials is of crucial importance on a global scale and may become a vitally significant assignment for future generations. The necessity for peat-free soil amendments is also directed by the targets of circular economy and environmental sustainability goals, leading to reducing or abandoning the use of fossil resources and paying attention to waste utilization as secondary raw material. This paper aims to discuss general features of peat-free soil amendments as well as provide efforts into the use of secondary raw materials such as biomass ashes for the elaboration of peat-free soil-improving products. As a case example, may serve a description of the peat-free product made by rotary drum granulation from biomass fly ashes (energy production waste) and local freshwater sediments in a mass ratio mixture of 67:100, optimally applicable for soil improvement at a rate of 50 g L -1 . Besides, regional opportunities in Indonesia and Latvia are referred. It was concluded that peat-free soil amendment elaboration can be better implemented on a regional scale after assessing agricultural needs, soil specifics, and available raw material variety applicable as ingredients in soil-improving products.

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