Development of Fatty Waste Composting Technology Using Bacterial Preparation With Lipolytic Activity

Aikaitė-Stanaitienė, J.; Grigiškis, Saulius; Levišauskas, Donatas; Čipinytė, Vilma; Baškys, Egidijus; Kačkytė, Vaiva

doi:10.3846/jeelm.2010.34

Cited by 9 publications

(5 citation statements)

References 9 publications

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“…Se prepararon tres mezclas de compostaje con relación C/N de 30/1, 40/1 y 60/1, el proceso se llevó a cabo en reactores de 20 L en las condiciones óptimas de compostaje (ver cuadro 2.). Al finalizar el estudio se encontró que la relación C/N adecuada en estos procesos es de aproximadamente 30/1 en condiciones ideales de compostaje [19].…”

Section: Metodologías Aplicadas Para El Compostaje a Partir De Los Reunclassified

Manejo ambiental de residuos orgánicos

González-Jiménez¹,

Villalobos-Morales

2021

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La inadecuada disposición de residuos trae consigo una serie de impactos ambientales negativos tanto para los seres humanos como para la biota en general. Uno de los residuos municipales que representa la principal fuente de impactos y riesgos ambientales adversos en los vertederos tradicionales es la fracción orgánica biodegradable, especialmente los residuos de las trampas de grasas y aceites. Las técnicas para su disminución en vertederos comprenden desde generación de biodiesel hasta el compostaje. En el presente estudio se realiza una descripción del estado del arte de algunas metodologías utilizadas a nivel mundial para llevar a cabo el compostaje de los residuos de las trampas de grasas y aceites; esto con la intención de lograr minimizar los impactos ambientales generados por la inadecuada disposición de los mismos. Se determinó que, por las condiciones climatológicas habituales de nuestro país, es posible utilizar los procesos de compostaje en el tratamiento de los residuos sólidos provenientes de sistemas de trampas de grasas y aceites.

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Section: Metodologías Aplicadas Para El Compostaje a Partir De Los Reunclassified

Manejo ambiental de residuos orgánicos

González-Jiménez¹,

Villalobos-Morales

2021

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“…In a biofilter during the air-cleaning process, the molecules of the supplied pollutant slowly move across the charge. After the pollutants have migrated from the gaseous to the watery stage, they are involved in fermentation, and are disrupted by microorganisms that are located inside the biofilter charge [31]. The charge that is irrigated increases the aerodynamic resistance of the layers of the biofilter.…”

Section: Introductionmentioning

confidence: 99%

Research of Modified Atomizers and Their Application for Moistening of Air-Cleaning Device Charges

Baltrėnas

Baltrėnaitė-Gedienė

2019

Sustainability

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The size of sprayed droplets is a very important parameter that influences the operational efficiency of air-cleaning device charges. It is desirable for atomizers to spray droplets that are dispersed as much as technically and economically reasonable and possible. Fine dispersion spraying ensures effective moistening of the air-cleaning device charges, as well as an optimal consumption of water or other liquids. Three modifications of special atomizers were used for experimental analysis. The atomization of liquid and spraying in the special atomizer occurs when two frontal streams confront each other. Frontal streams are formed by an inner shield located in the special atomizer. The experiment was conducted using different spraying pressures, namely: 6 bar, 4 bar, 2 bar. The evaluation (performed using a microscope) of the size of sprayed droplets shows that the best (finest) spraying was by the special atomizer of modification 3. The depth of the channel of the inner shield is the parameter that has the biggest influence on the size of sprayed droplets. The special atomizer of modification 3 produces droplets with the following size distribution and rates: ≤0.05 mm—63.2 vol%; 0.2–0.6 mm—28.3 vol%; 0.6–1.0 mm—8.1 vol%; ≥1.0 mm—0.4 vol%.

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“…Z ˙ak, Pawlak 2006b). The production processes regarding fats of animal or vegetable origin are inextricably linked with the formation of industrial wastewaters which after pretreatment can be utilized in plant farming by irrigation and fertilization because they are biodegradable (Kvasauskas, Baltrenas 2009; Aikaite-Stanaitiene et al 2010; Directive 76/464/ EEC). Technological wastewaters from vegetable fat production are rich in phosphorus compounds and poor in nitrogen compounds (Ru ¨ffer, Rosenwinkel 1991).…”

Section: Introductionmentioning

confidence: 99%

The influence of treated oleo-chemical wastewater applications on the metal speciation forms in soils

Żak

Rauckyte-Żak

Laurinavičius

2013

Journal of Environmental Engineering and Landscape Management

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This paper presents a developed method of pretreating wastewaters coming from small-tonnage oleochemical production and also the research results on the variability of concentrations of heavy metals (Cd, Cr, Cu, Ni, Pb, Zn) in the soil irrigated and fertilized with wastewater from this production. The processing wastewater pretreatment was carried out at two stages. The first stage eliminated fatty substances by using dispersed air flotation aided with hydrogen peroxide as an oxidizer. The second stage included coagulation and chemical precipitation with milk of lime, flocculation, final dissolved air flotation (DAF), and also oxidation with hydrogen peroxide. Field experiments, the aim of which was to compare variability levels for speciation fractions of heavy metals, were carried out according to Tessier's method for four years. The study revealed that the average concentrations of the given metals fractions in soil samples where raw wastewaters were directed did not significantly change during the experiment, which clearly justifies the need for their physicalÁchemical pretreatment and further agro-utilization without the risk of soil environment degradation. The successive decrease of exchangeable fraction, the increase in the content of the fraction bound with carbonate forms, and stability of the fraction bound with hydrated iron and manganese oxides as well as organic and residual fractions were found in soil samples treated with pretreated wastewaters.

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Development of Fatty Waste Composting Technology Using Bacterial Preparation With Lipolytic Activity

Cited by 9 publications

References 9 publications

Manejo ambiental de residuos orgánicos

Manejo ambiental de residuos orgánicos

Research of Modified Atomizers and Their Application for Moistening of Air-Cleaning Device Charges

The influence of treated oleo-chemical wastewater applications on the metal speciation forms in soils

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