Technological options for the management of biosolids

Wang, Hailong; Brown, Sally; Magesan, G. N.; Slade, Alison; Quintern, Michael; Clinton, Peter W.; Payn, T. W.

doi:10.1007/s11356-008-0012-5

Cited by 190 publications

(108 citation statements)

References 65 publications

(97 reference statements)

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“…Os valores de P-total dos lodos utilizados estão dentro dos valores relatados em outros estudos, que vão de 0,57 a 15,4 g kg -1 (Krogmann & Chiang, 2002, García-Delgado et al, 2007, Wang et al, 2008. Cerca de 58 a 74% do total de P dos lodos esteve presente sob formas inorgânicas, o que é consistente com os resultados obtidos por Sommers et al (1976), em que 64 a 82% do total de P dos lodos de esgoto de sistemas de lodos ativados predominou no compartimento inorgânico e por Sophonsiri & Morgenroth (2004), em que o compartimento inorgânico apresentou 90% do P-total.…”

Section: Carbono Nitrogênio E Fósforounclassified

“…O uso do lodo como condicionador de solo e/ou fertilizante tem sido recomendado em função de seu conteúdo orgânico e processo de mineralização, principalmente de compostos nitrogenados, podendo aumentar o teor de matéria orgânica (MO) ou carbono (C) em solos tratados (Bernal et al, 1998;Wang et al, 2004;García-Delgado et al, 2007;Schroder et al, 2008;Wang et al, 2008). De modo geral, tanto o remanescente orgânico no solo, como a liberação de nutrientes, dependem do processo de mineralização do lodo após aplicação no campo e, nesse sentido, a qualidade do material orgânico originalmente presente no lodo desempenha papel importante.…”

Section: Introductionunclassified

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Composição química da matéria orgânica de lodos de esgoto

Carvalho

Ribeirinho

Andrade

et al. 2015

Agraria

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RESUMOLodos de esgoto podem ser reciclados no solo agrícola como fonte de nutrientes para as plantas e visando o aumento no teor de matéria orgânica. O objetivo do presente trabalho foi caracterizar a fração orgânica de lodos de esgoto (teores totais, orgânicos e inorgânicos de carbono, nitrogênio e fósforo; concentrações de carbono solúvel em água, açúcares solúveis, proteína bruta, lipídeos, hemicelulose, celulose, lignina, fenóis e taninos totais), de modo a auxiliar no planejamento de seu uso na agricultura. Foram utilizados cinco tipos de lodos de esgoto com diferenças quanto às etapas posteriores de condicionamento químico e/ou tratamento complementar para desidratação, sendo três provenientes de processo anaeróbio: cal e cloreto férrico, desidratado mecanicamente (LAC); polímero sintético e desidratado mecanicamente (LAP); polímero sintético e desidratado termicamente (LAS), e dois de processo aeróbio de digestão: condicionamento com polímero sintético e secagem em leitos (LLP); LLP após processo de compostagem em pilhas aeradas em mistura com bagaço de cana-de-açúcar e restos de poda urbana, composto de lodo (CL). O condicionamento com polímero e secagem térmica conservou mais a matéria orgânica do resíduo, o que foi evidenciado pela presença de maiores teores de compostos orgânicos facilmente degradáveis, bem como de carbono (337,24 g kg -1 ), nitrogênio (39,02 g kg -1 ) e fósforo (2,93 g kg -1 ) no compartimento orgânico. Em todos os lodos houve expressiva participação do conteúdo protéico na matéria orgânica, que foi de aproximadamente 43, 42, 28 e 25 % para os lodos de esgoto LAC, LAP, LAS, LLP e CL, respectivamente. Palavras-chave: biossólidos, compostos orgânicos, fertilizante orgânicoChemical composition of sewage sludge organic matter ABSTRACT Sewage sludge can be recycled in agricultural soil as a source of plant nutrients and in order to increase the organic matter content. The objective of this study was to characterize the organic fraction of sewage sludge (contents of carbon, nitrogen and total organic and inorganic phosphorus; concentrations of protein, fat, fiber, phenol and tannin) in order to assist in planning their use in agriculture. Five types of sewage sludge with differences were used for the later stages of chemical conditioning and / or complementary treatment for dehydration, three from anaerobic process: lime and ferric chloride, mechanically dehydrated (LAC); synthetic polymer and dehydrated mechanically (LAP); synthetic polymer and thermally dehydrated (LAS), and two aerobic digestion process: etching synthetic polymers with drying beds (LLP); LLP after the composting process in aerated piles mixed with bagasse from sugar and urban pruning debris, sludge compost (CL). The conditioning polymer and heat drying the organic matter retained in the residue, which was evidenced by the presence of higher concentrations of readily degradable organic compounds and carbon (337.24 g kg -1 ), nitrogen (39.02 g kg -1 ) and phosphorus (2.93 g kg -1 ) in the organic compartment. In all sludg...

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Section: Carbono Nitrogênio E Fósforounclassified

Section: Introductionunclassified

Composição química da matéria orgânica de lodos de esgoto

Carvalho

Ribeirinho

Andrade

et al. 2015

Agraria

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“…There are cases that cumulative fossil fuel inputs at least equal the energy content of biofuels. Such cases include: current algal oil production in bioreactors (Wijffels 2008) and presumably also in open ponds (Reijnders 2008a), CH 4 generation from swine and cattle manure in the Netherlands (Zwart et al 2006), and the incineration of wastewater treatment sludges for the production of heat or electricity (Wang et al 2008).…”

Section: Biofuelsmentioning

confidence: 99%

Fuels for the future

Reijnders

2009

Journal of Integrative Environmental Sciences

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There are unconventional fuels that may serve as near term major replacements for conventional mineral oil and natural gas. These include fuels from oil shale and bitumen, liquid fuels from coal, methane from methane hydrates, biofuels and the secondary fuel hydrogen. Here, these fuels will be reviewed as to their presumable stocks and life cycle wastes, emissions and inputs of natural resources. The unconventional fuels are usually characterized by a relatively poor source-toburner energy efficiency when compared with current conventional mineral oil and gas. Apart from some varieties of hydrogen and biofuel, their life cycles are characterized by relatively large water inputs, emissions, and wastes. The unconventional fuels shale oil, bituminous oil, coal liquids, and methane from methane hydrates are based on natural resources which are practically finite. This does not hold for biofuels, but the sustainable supply thereof is severely limited when large numbers of people also have to be fed. In view of the problems associated with unconventional fuels, there is a case to consider fuel-less replacements for many fuel applications.

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“…The applications of bio-solid as soil amendment need to be environmentally safe and economically viable [3]. Many studies on bio-solid applications can improve the soil physical, chemical, and biological properties, and consequently speed plant growth and increased plant biomass [4] [5] [6] [7].…”

Section: Introductionmentioning

confidence: 99%

Application of Bio-Solids as Soil Amendment in Arid Rangeland of Jordan

AlAyyash¹,

Al-Meshan²,

Shatnawi³

2017

JEP

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Due to long drought periods and over utilizing of range lands in the arid lands of Jordan, the land is degraded and lost most of its natural vegetation. To rehabilitate the natural vegetation cover, there is a need to enhance the fertility of soil to be able to support vegetation under limited amounts of rainfall. One of the available and viable options that might be able to provide a solution for the soil poverty is applying materials with high organic contents such as biosolid. Bio-solids are nutrient-rich organic materials from the treatment of domestic sewage in a wastewater treatment facility. Bio-solids are a beneficial resource, containing essential plant nutrients and organic matter and are recycled as a fertilizer and soil amendment. A pilot study is designed based on randomized block design in which five treatments are used to represent the loading rates of bio-solids application. These loads were 10, 20, 30, 40 and 50 tons/ha with four replicates for the control and each application load. Samples from Bio-solid, soil and plants are tested for chemicals and microbes. Chemical tests include: As, Cd, Cr, Co, Cu, Hg, Mo, Ni, Pb, Se, and Zn, while microbial tests include: total fecal Coliform, Salmonella, and Helminthes eggs. Results of total microbial count in bio-solids, soil and plant samples indicated that there were no detectable counts found in all of the experimental plots. Results showed increase in most of the heavy metals concentration in soil treated with bio-solids from that of soil in control plots; some of these elements doubled after applying the bio-solid. For the dry plant matter, analysis for heavy metals showed that most of the heavy metals studied were below the detection limit. Only the Cr, Cu and Zn are changed but not significantly compared with the control plot. Results obtained were showed that the highest dry biomass value was obtained with bio-solids loading rate 40 tons/ha and more. Increasing rate of application after 40 tons/ha did not show significant differences in the biomass yield. Also, the total nitrogen in the plants increased by 40% for all bio-solid application loads compared with the control lot.How to cite this paper: AlAyyash, S.M.,

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Technological options for the management of biosolids

Cited by 190 publications

References 65 publications

Composição química da matéria orgânica de lodos de esgoto

Composição química da matéria orgânica de lodos de esgoto

Fuels for the future

Application of Bio-Solids as Soil Amendment in Arid Rangeland of Jordan

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