A multicomponent approach to using waste-derived biochar in biofiltration: A case study based on dissimilar types of waste

Baltrėnaitė, Edita; Baltrėnas, Pranas; Bhatnagar, Amit; Vilppo, Teemu; Selenius, Mikko; Koistinen, Arto; Dahl, Mari; Penttinen, Olli-Pekka

doi:10.1016/j.ibiod.2016.10.056

Cited by 35 publications

(24 citation statements)

References 41 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The obtained biochar was ground after being cooled down to ambient temperature (20±3ºC), and a 1-10-mmdiameter fraction was separated by sieves (Retsch, Germany). Biochar yield (%) was calculated according to: (1) …where W 1 is the dry mass of the feedstock (g) and W 2 is the dry mass of biochar (g).…”

Section: Biochar Productionmentioning

confidence: 99%

“…Comparatively, adsorption is considered a better and more economical alternative in wastewater treatment because of the removal of PTEs at low concentrations, flexibility in design and operation. Biochar is one of the alternative sorbents to commercial activated carbon (AC), and could be produced from wastes [1,2] or by-products [3]. Prices for biochar worldwide vary between 0.08 to 13.5 $/kg [4], while the cost of commercial AC in the world market varies between 2.2-5 $/kg [5].…”

mentioning

confidence: 99%

See 1 more Smart Citation

Influence of H2O2 Modification on the Adsorptive Properties of Birch-Derived Biochar

Chemerys¹,

Baltrėnaitė-Gedienė²,

Baltrėnas³

et al. 2019

Pol. J. Environ. Stud.

Self Cite

View full text Add to dashboard Cite

Due to population growth and rapid development of industrialization, the spread of a wide range of potentially toxic elements (PTEs) in surface water and groundwater has become a critical issue worldwide. PTEs persisting in wastewater include heavy metals, inorganic compounds, organic pollutants and other complex compounds. The most common cationic PTEs in wastewater, like Pb(II), Zn(II), Cu(II), Cr(III, IV, VI), Ni(II), and Cd(II), are long-term pollutants and cannot degrade naturally. If present in excessive concentrations, they may be hazardous to human health and inhibit plant growth. The Baltic Marine Environment Protection Commission (HELCOM) has referred these metals to its list of priority contaminants. A variety of treatment technologies are available with different degrees of success to control and minimize wastewater pollution with PTEs. The usual concentration of these metals in wastewater solution is low (Cr 0.

show abstract

Section: Biochar Productionmentioning

confidence: 99%

mentioning

confidence: 99%

Influence of H2O2 Modification on the Adsorptive Properties of Birch-Derived Biochar

Chemerys¹,

Baltrėnaitė-Gedienė²,

Baltrėnas³

et al. 2019

Pol. J. Environ. Stud.

Self Cite

View full text Add to dashboard Cite

show abstract

“…Char properties limit its application possibilities [80]. Gasification chars are dense (specific surface area <70 g/m 2 ), thus their application possibilities are limited.…”

Section: Biocharmentioning

confidence: 99%

Small Scale Gasification Application and Perspectives in Circular Economy

Kļaviņš

Bisters

Burlakovs

2018

Environmental and Climate Technologies

View full text Add to dashboard Cite

Gasification is the process converting solid fuels as coal and organic plant matter, or biomass into combustible gas, called syngas. Gasification is a thermal conversion process using carbonaceous fuel, and it differs substantially from other thermal processes such as incineration or pyrolysis. The process can be used with virtually any carbonaceous fuel. It is an endothermic thermal conversion process, with partial oxidation being the dominant feature. Gasification converts various feedstock including waste to a syngas. Instead of producing only heat and electricity, synthesis gas produced by gasification may be transformed into commercial products with higher value as transport fuels, fertilizers, chemicals and even to substitute natural gas. Thermo-chemical conversion of biomass and solid municipal waste is developing as a tool to promote the idea of energy system without fossil fuels to a reality. In municipal solid waste management, gasification does not compete with recycling, moreover it enhances recycling programs. Pre-processing and after-processing must increase the amount of recyclables in the circular economy. Additionally, end of life plastics can serve as an energy feedstock for gasification as otherwise it cannot be sorted out and recycled. There is great potential for application of gasification technology within the biomass waste and solid waste management sector. Industrial self-consumption in the mode of combined heat and power can contribute to sustainable economic development within a circular economy.

show abstract

“…The criteria, describing the ability of a biochar to facilitate the effective adsorption of metals, are given in Figure 1. When compared with activated carbon (AC), biochar could be produced from wastes (Baltrėnaitė et al 2016a) at lower temperatures in a shorter time period and costs 3 times lower (platform for global wholesale trade www.alibaba.com). Despite of the lower microporosity and surface area of the biochar in comparison to activated carbon, adsorption characteristics of the biochar could be improved by modification techniques.…”

Section: Introductionmentioning

confidence: 99%

Effect of Modification with FeCl3 and MgCl2 on Adsorption Characteristics of Woody Biochar

Chemerys

Baltrėnaitė²

2017

Proccedings of 10th International Conference "Environmental Engineering"

Self Cite

View full text Add to dashboard Cite

Abstract. Due to high specific surface area, well-developed porous structure and surface functionality biochar has a potential for being used as low-cost adsorbent for adsorption of organic and inorganic contaminants from aqueous solutions. Higher adsorption capacity and selectivity for metals could be further developed after modification of properties of biochar through physical ("designed biochar") and chemical ("engineered biochar") modification techniques. Wood waste of three types [aspen (Populus tremula L.), pine (Pinus sylvestris L.) and fir (Picea abies L.)] were selected to produce the biochar under slow pyrolysis conditions at 450 °C for 2 h with the heating rate of 10 °C/min. Mg and Fe-particles, acting as potential sorption sites for adsorption of metals, were added into the biochar through modification of the biochar with metal salts MgCl2 and FeCl3. The aim of the study was to investigate the effect of chemical modifications of woody biochar with MgCl2 and FeCl3 on the adsorption characteristics of the biochar. The engineered biochar with improved physico-chemical and sorptive properties was evaluated as potential adsorbent of metals from aqueous solutions. Such characteristics of the biochar, as density, porosity, pH, cation exchange capacity, electrical conductivity, moisture content, ash content, water holding capacity, total organic carbon were analyzed. Modifications followed by increasing of moisture and ash content. While carrying out the future adsorption experiment, significantly decreased pH and electrical conductivity of the engineered biochar should be taken into account. Increased cation exchange capacity of the engineered biochar promotes enhanced adsorption of metals.

show abstract

A multicomponent approach to using waste-derived biochar in biofiltration: A case study based on dissimilar types of waste

Cited by 35 publications

References 41 publications

Influence of H<sub>2</sub>O<sub>2</sub> Modification on the Adsorptive Properties of Birch-Derived Biochar

Influence of H<sub>2</sub>O<sub>2</sub> Modification on the Adsorptive Properties of Birch-Derived Biochar

Small Scale Gasification Application and Perspectives in Circular Economy

Effect of Modification with FeCl3 and MgCl2 on Adsorption Characteristics of Woody Biochar

Contact Info

Product

Resources

About