Land disposal potential of tobacco processing residues

Tedesco, Marino José; Lauschner, Marcio Henrique; Gianello, Clésio; Bortolon, Leandro; Kray, Claudio Henrique

doi:10.1590/s0103-84782011005000002

Cited by 3 publications

(3 citation statements)

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“…There is no publicly available knowledge regarding the use of tobacco waste as a carbon source in the AMD passive biotic treatment approach. Tobacco waste has higher alkalinity (pH of 5.1-6.5) [18] compared to that of AMD (pH of 2-3). When these two are mixed, the combined higher pH should potentially increase the reaction rate of converting ferrous iron to ferric iron as this rate is several orders of magnitude faster at near-neutral pH.…”

Section: Introductionmentioning

confidence: 99%

“…This implies that this waste could potentially be used in AMD treatment either as an adsorbent or as a carbon source for SRBs. The industrial processing of tobacco leaves generates significant waste (95% is tobacco dust and 5% is tobacco stems) which has no commercial value in factories [18]. Landfilled or dumped tobacco wastes leach out toxins such as nicotine and when it rains, these toxins are washed into public water bodies presenting health problems to humans and animals [19].…”

Section: Introductionmentioning

confidence: 99%

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Exploring the Use of Tobacco Waste as a Metal Ion Adsorbent and Substrate for Sulphate-Reducing Bacteria during the Treatment of Acid Mine Drainage

Dovorogwa

Harding

2022

Sustainability

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Treatment of acid mine drainage (AMD) was successfully demonstrated using tobacco waste (dust and stem) as a metal cation adsorbent, pH modifier and carbon source for sulphate-reducing bacteria (SRB). Synthetic and industrial AMD wastewaters were used in batch adsorption and SRB facilitated bioremediation experiments. Up to absorbent loading of 80 g/L, metal removal increased. However, increases above 160 g/L did not offer a proportional increase. At an adsorbent loading of 80 g/L, the highest metal removals of 38, 41, 31 and 43% for iron, nickel, copper and zinc respectively were achieved. The iron data fitted well to the Langmuir adsorption isotherm while the Sips adsorption isotherm better-described nickel, copper and zinc adsorption to tobacco waste. SRBs used were able to use tobacco waste as a carbon source while reducing sulphates to metal sulphides in acid mine drainage. In the presence of SRBs, metal removals by both adsorption and sulphide precipitation were 95, 97, 70 and 93% for iron, nickel, copper and zinc, respectively. Copper, however, demonstrated lower removal yields in both adsorption and bioremediation. Bioremediation improved acid mine drainage pH by 2.05 units. The exponential decay function could model both the metal and sulphate removal perfectly. It was concluded that tobacco waste can be confidently used as an adsorbent and carbon source for sulphate-reducing bacteria while facilitating AMD biological treatment.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Exploring the Use of Tobacco Waste as a Metal Ion Adsorbent and Substrate for Sulphate-Reducing Bacteria during the Treatment of Acid Mine Drainage

Dovorogwa

Harding

2022

Sustainability

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“…Alguns resíduos orgânicos, como as farinhas de origem animal e vegetal, podem ser utilizados como fertilizantes orgâ-nicos no solo sem passar por tratamentos prévios (TEDESCO et al, 2011). Contudo, a estabilização dos compostos orgânicos é uma forma de reduzir a contaminação ambiental e melhorar as condições do solo.…”

Section: Introductionunclassified

Transformações químicas dos ácidos húmicos durante o processo de vermicompostagem de resíduos orgânicos

Antunes

Castilhos²,

Castilhos³

et al. 2015

Eng. Sanit. Ambient.

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The production of organic waste during the agro-industrial processes is a problem for both environmental and economical issues due to the chemical characteristics of these wastes. Generally, stabilized organic residues are used as soil conditioners. These residues can affect both and chemically characterized as pH, organic carbon, total nitrogen, Ca, Mg, K, P, C/N ratio, and electrical conductivity (EC) before, during and after the vermicomposting process. In addition, it was analyzed the fractionation of organic matter such as humic substances, elemental analysis and infrared spectroscopy. According to the vermicomposting process of agro-industrial wastes, the total organic carbon and fulvic acids were reduced; however, humic acids increased proportionately.Among the studied vermicomposts, they differ in the final ratio of humic substances formed decreasing following: EB>RF>AND>RA>LP.This demonstrates a stabilization of organic compounds through the vermicompost process, and therefore can be used with greater safety in agriculture.

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Linking Energy- and Land-Use Systems: Energy Potentials and Environmental Risks of Using Agricultural Residues in Tanzania

Terrapon-Pfaff

2012

Sustainability

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This paper attempts to assess whether renewable energy self-sufficiency can be achieved in the crop production and processing sector in Tanzania and if this could be accomplished in an environmentally sustainable manner. In order to answer these questions the theoretical energy potential of process residues from commercially produced agricultural crops in Tanzania is evaluated. Furthermore, a set of sustainability indicators with focus on environmental criteria is applied to identify risks and opportunities of using these residues for energy generation. In particular, the positive and negative effects on the land-usesystem (soil fertility, water use and quality, biodiversity, etc.) are evaluated. The results show that energy generation with certain agricultural process residues could not only improve and secure the energy supply but could also improve the sustainability of current land-use practices.

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Land disposal potential of tobacco processing residues

Abstract: Brazil is one of the leaders in the production and trading of tobacco leaves in the global market, which results in a large amount of residues that would be recycled and used as

Cited by 3 publications

References 3 publications

Exploring the Use of Tobacco Waste as a Metal Ion Adsorbent and Substrate for Sulphate-Reducing Bacteria during the Treatment of Acid Mine Drainage

Exploring the Use of Tobacco Waste as a Metal Ion Adsorbent and Substrate for Sulphate-Reducing Bacteria during the Treatment of Acid Mine Drainage

Transformações químicas dos ácidos húmicos durante o processo de vermicompostagem de resíduos orgânicos

Linking Energy- and Land-Use Systems: Energy Potentials and Environmental Risks of Using Agricultural Residues in Tanzania

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