Valorizing municipal solid waste: Waste to energy and activated carbons for water treatment via pyrolysis

Gopu, Chitanya; Gao, Lihui; Volpe, Maurizio; Fiori, Luca; Goldfarb, Jillian L.

doi:10.1016/j.jaap.2018.05.002

Cited by 72 publications

(30 citation statements)

References 82 publications

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“…The pyrolytic fluid, as a result of volatile gas condensation, can be utilized as a gasoline product after additional upgrading or as building blocks for relevant chemicals' synthesis [50]. Char is well-known for power generation, soil amendment as long-term carbon sequestration and carbon materials [51]. Char generation from pyrolysis is not a new idea, and it has long been used for synthesizing coke/activated charcoal/biochar from biomass and coal.…”

Section: Gasification Pyrolysis and Torrefactionmentioning

confidence: 99%

A critical review: emerging bioeconomy and waste-to-energy technologies for sustainable municipal solid waste management

Tsui

Wong

2019

Waste Dispos. Sustain. Energy

145

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Municipal solid waste (MSW) management has emerged as probably the most pressing issue many governments nowadays are facing. Traditionally, Waste-to-Energy(WtE) is mostly associated with incineration, but now, with the emergence of the bioeconomy, it embraces a broader definition comprising any processing technique that can generate electricity/heat or produce a waste-derived fuel. Under the ambit of the circular economy many nations are looking for, additional effort must be made to be sure of acquiring the most updated information and paving a sustainable path for managing MSW in such a frame. In this regard, we have undertaken a critical review of various technologies, with their updated progress, involved in the exploitation of MSW as a renewable resource, along with the critical advantages and limitations on energy and material cycling for sustainable MSW management. Incineration, the most widely used method, is nowadays difficult to further apply due to its dubious reputation and social opposition. Meanwhile, to address the organic fraction of MSW which currently is mostly unrecycled and causes disposal issues, the biological approach presents an attractive option. The new emphasis of bioeconomy leads us to understand how environmental biotechnologies should be better connected/integrated for more sustainable MSW management. This article is concluded with advances of future prospects, which can serve as a timely reminder to encourage competent authorities/researchers to work towards further improvement of the present MSW management system.

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Section: Gasification Pyrolysis and Torrefactionmentioning

confidence: 99%

A critical review: emerging bioeconomy and waste-to-energy technologies for sustainable municipal solid waste management

Tsui

Wong

2019

Waste Dispos. Sustain. Energy

145

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“…This is expected; incomplete combustion and partial oxidation can result in the formation of aromatics within carbonaceous material 83 as recently reported for biochars and activated carbons derived from olive mill waste and municipal solid waste. 27,84 Oxygen containing functional groups like C-O, C]O and O]C-O decreased in relative area as the ratio of FA increased for both biochars as well as activated carbons. The FA appears to enhance the degree of aromatization, but signicantly decreases the relative concentration of carbonyl groups while preserving or modestly decreasing ketones and carboxylic acid nature.…”

Section: Physical and Chemical Characteristicsmentioning

confidence: 99%

“…78 Our group found that activated carbons derived from olive mill waste and MSW showed strong FTIR absorption between 1750 and 1650 cm À1 and between 1500 and 1450 cm À1 , which suggest high concentrations of -C]O groups. 27,84 As such, the variation of surface functional groups is not only strongly inuenced by the activation conditions, but also by the nature of the biomass and any heterogeneous components. The C-O concentrations in the WS-only biochar is slightly higher than the corresponding activated sample, while the C]O and O]C-O groups decrease substantially upon activation.…”

Section: Physical and Chemical Characteristicsmentioning

confidence: 99%

Heterogeneous biochars from agriculture residues and coal fly ash for the removal of heavy metals from coking wastewater

Gao

Goldfarb

2019

RSC Adv.

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“…Consequently, waste cotton cloths have extensive sources for recycling and reuse [13]. According to America Environmental Protection Agency (EPA) report published in 2018 for 2015 municipal solid waste (MSW) statistics, about 16.03 million tons of textiles were discarded of which greater portion was cotton textiles [14,15]. Hamawand et al [3] reported that there were over 25 million tons of cotton cloths which were produced and utilized globally, resulting in discarding of large quantity of WCC concurrently.…”

Section: Introductionmentioning

confidence: 99%

Assessing the performance of modified waste cotton cloth (MWCC) installed in a biological contact reactor as a biofilm carrier used for domestic wastewater treatment

et al. 2019

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The current study examined the performance of modified waste cotton cloth (MWCC) in the removal of organic pollutants from domestic wastewater as an emerging technique for waste textile resource management and reuse. The MWCC biofilm carrier was self-made with discarded cotton cloths cut into smaller strips with 66 cm long and average weight of 2.4 g each. The surface of the non-modified waste cotton cloth (NM-WCC) was modified through the hydrosulphuric acid (H 2 SO 4) method to enhance the physical characteristics of the material such as hydrophilicity and biofilm attachment. The best filling rate of the carrier used for the experiment was 65% as determined by preliminary studies. Two self-made biological contact biofilm reactors: R1 (installed with NM-WCC) and R2 (fixed with MWCC), were used for the experiment. The experimental results showed that MWCC had higher removal efficacy of chemical oxygen demand, ammonia-nitrogen (NH 4 +-N) and total phosphorus (TP) at 98.34%, 85.44% and 60.20%, respectively. The hydraulic retention time decreased from 21 to 8 h on the 4th day. The scanning electron microscope was used to analyse the surface characteristics of the NM-WCC and MWCC. The water-holding capacity of the biofilm carriers was determined through the static immersion method and ASTM D1117-80 guiding principles. The water contact angle was estimated through the static process by adapting Young's equation. The findings of this research could significantly contribute to the discovering of alternative innovative technological prospects of utilizing H 2 SO 4 MWCC as an effective biofilm carrier in domestic wastewater treatment.

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Valorizing municipal solid waste: Waste to energy and activated carbons for water treatment via pyrolysis

Cited by 72 publications

References 82 publications

A critical review: emerging bioeconomy and waste-to-energy technologies for sustainable municipal solid waste management

A critical review: emerging bioeconomy and waste-to-energy technologies for sustainable municipal solid waste management

Heterogeneous biochars from agriculture residues and coal fly ash for the removal of heavy metals from coking wastewater

Assessing the performance of modified waste cotton cloth (MWCC) installed in a biological contact reactor as a biofilm carrier used for domestic wastewater treatment

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