Search results

1

Pilot Study of Generation and Disposal of Municipal Solid Wastes in Selected Household in Rural Areas in the South-Western Poland

100%

Strzelczyk M.

Polish Journal of Chemical Technology

|

2014

|

vol. 16

|

issue 2

56-62

EN

Pilot study of the composition of wastes was carried out in 15 rural family households engaged in agricultural activity. In the study group the average resident of rural areas generates about 166 kg of municipal wastes annually. The conducted studies showed that the composition of municipal wastes coming from rural households changes seasonally. During the periods of summer and autumn, the quantity of bio-wastes increased distinctly. The average mass of wastes transferred to the companies engaged in the collection of wastes in the analyzed rural households is almost 50 kg · M–1. year–1. The studies showed that over 80% of organic wastes (kitchen and garden) is utilized in the place where they are generated. In the studies, organic wastes were collected selectively (in separate bags), which undoubtedly had infiuence on their humidity (70–90%). Laboratory analysis of these wastes showed that the ratio C:N in it was from 7 to 19, whereas pH lay within the limits from 5.8 to 6.9 indicating its very good properties for the composting process. Therefore composting of organic waste from rural household should be recommended as the best way for its disposal and the weight reduction of biodegradable waste going to landfills. Comparison of the analyzed variants showed that some waste other than kitchen and garden does not leave the holding (it is re-used or burned in home hearths).

2

A model of the meat waste management

80%

Kowalski Z., Krupa-Żuczek K.

Polish Journal of Chemical Technology

|

2007

|

vol. 9

|

issue 4

91-97

EN

The European Union produces about 18 million tons of waste from meat industry per year. The real danger of the BSE disease caused a necessity of looking for a new alternative solution of meat waste management. The proposed solution of meat industry waste management would create meat production waste free with the use of the cleaner production method. Cleaner production includes: pollution prevention, reduction of the source, recovery of materials and energy (for example: the recovery of blood plasma and protein hydrolisate from bone sludge) and their recycling. The thermal processing of meat industrial waste (bone sludge, meat-bone meal and odour) is anticipated, too. Ashes from meat calcining have the phosphorus content close to its concentration, of the typical phosphoric raw materials. That confirmed the possibility of using such ashes as the substitute of phosphoric raw materials. The target model of waste free meat waste management included the results of the implemented and current research.

3

Biochemistry of wastes recycling

80%

Waheeg S. A., Adesola R. O., Garba S. M.

|

EN

Waste is an unwanted byproduct of human actions that physically contains the same substance as the valuable product. Waste is produced as a result of inefficient manufacturing processes, and its constant creation results in a waste of critical resources. Recycling is the conversion of waste materials into new materials and things, and a material's recyclability is determined by its ability to regain the attributes it had in its virgin or original state. Waste is divided into broad categories depending on its environmental impact (hazardous and non-hazardous waste), physical state (solid, liquid, and gaseous waste), and source. Biological reprocessing, energy recovery, and physical reprocessing are some of the waste recycling processes available. The purpose of waste management is to create sanitary living circumstances in order to limit the quantity of garbage that enters and leaves society while also encouraging the reuse of waste. Fermentation of organic waste, anaerobic digestion, bioleaching, biosorption, and bioreduction are examples of biochemical waste recycling technologies. We review to provide adequate and concise information on the biochemistry of waste management.

4

Investigation of sewage sludge preparation for combustion process

80%

Magdziarz A., Wilk M., Kosturkiewicz B.

Chemical and Process Engineering

|

2011

|

vol. 32

|

issue 4

299-309

EN

Waste disposal is imposed by the European Union under Treaty of Accession concerning waste management order. One of the waste disposal methods is thermal utilisation. The paper presents an investigation of sewage sludge briquettes used as a fuel in combustion process. The research study was carried out on samples taken from the Municipal Wastewater Treatment Plant in Bochnia. Briquettes with lime were formed. The analysis of the elementary chemical composition of municipal sewage sludge, the composition of the ash and thermogravimetric analysis were carried out. The results indicate that the prepared briquettes had sufficient fuel properties.

5

Investigation of sewage sludge preparation for combustion process

70%

Magdziarz A., Wilk M., Kosturkiewicz B.

Chemical and Process Engineering

|

2011

|

issue 4

6

Storage of dangerous medical wastes in medical service institutions

70%

Furtak-Niczyporuk M.

Teka Komisji Ochrony i Kształtowania Środowiska Przyrodniczego

|

2017

|

vol. XIV

7

The influence of CFBC fly ash addition on phase composition of air-entrained concrete

70%

Glinicki M. A., Zieliński M.

|

2008

|

vol. 56

|

issue 1

8

Pyrolysis Process of Whole Waste Tires as A Biomass Energy Recycling / Piroliza Opon Samochodowych Jako Energetyczny Recykling Biomasy

61%

Ryms M., Januszewicz K., Lewandowski W. M., Klugmann-Radziemska E.

Ecological Chemistry and Engineering S

|

2013

|

vol. 20

|

issue 1

93-107

EN

The article is devoted to the description of material recycling of whole waste tires, including a new method of pyrolysis process, resulting in the final products: technically oil fractions (rubber plasticizer of rubber compounds) or diesel fuels (light, medium and heavy), activated carbon, gas fuel and steel scrap. Operational and performance tests of the first version of the pilot plant, consisting of three contributions cooperating with one pyrolytic reactor confirmed that this technology is applicable but has still some flaws and errors, both structural and technological. Usually such errors in the first test of technology development cannot be avoided. This paper describes: pyrolysis processes which occurs in the pilot plant, protected by a patent application design of continuously working prototype installation for recycling of tire and identifies future directions of research in this field

PL

Artykuł poświęcony jest opisowi recyklingu materiałowego całych opon samochodowych z uwzględnieniem nowej metody procesu pirolitycznego, w wyniku którego produktem końcowym są: frakcje oleju technicznego (plastyfikator mieszanek gumowych), opałowego lub napędowego (lekkiego, średniego i ciężkiego), węgiel aktywny, gaz opałowy i złom stalowy. Badania ruchowe i eksploatacyjne pilotażowej instalacji, składającej się z trzech wkładów współpracujących z jednym reaktorem pirolitycznym, wykazały, że technologia ta jest możliwa do zastosowania, ale posiada jeszcze pewne wady i błędy zarówno konstrukcyjne, jak i technologiczne, których zazwyczaj nie udaje się uniknąć w pierwszej próbie opracowywania technologii. W pracy opisano zachodzące w wysokich temperaturach procesy pirolityczne, chroniony zgłoszeniem patentowym projekt prototypowej instalacji do recyklingu opon w sposób ciągły oraz wskazano przyszłe kierunki badań w tym zakresie. W pracy opisano procesy pirolityczne zachodzące w pilotażowej instalacji oraz opracowany, na podstawie uzyskanych wyników i zebranych doświadczeń, projekt prototypowej instalacji do recyklingu opon w sposób ciągły, który jest chroniony zgłoszeniem patentowym. Na zakończenie wskazano przyszłe kierunki badań w tym zakresie.

9

Applying lean tools and principles to reduce cost of waste management: an empirical research in Vietnam

57%

Minh N. D., Nguyen N. D., Cuong P. K., Minh N. D., Nguyen N. D., Cuong P. K.

|

vol. 10

|

issue 1

Refine search results

Pilot Study of Generation and Disposal of Municipal Solid Wastes in Selected Household in Rural Areas in the South-Western Poland

A model of the meat waste management

Biochemistry of wastes recycling

Investigation of sewage sludge preparation for combustion process

Investigation of sewage sludge preparation for combustion process

Storage of dangerous medical wastes in medical service institutions

The influence of CFBC fly ash addition on phase composition of air-entrained concrete

Pyrolysis Process of Whole Waste Tires as A Biomass Energy Recycling / Piroliza Opon Samochodowych Jako Energetyczny Recykling Biomasy

Applying lean tools and principles to reduce cost of waste management: an empirical research in Vietnam