The correlations of the particle size, calorific value, moisture- and ash content of waste derived fuel, and examination of its heavy metal content

Significant development has taken place in the field of waste management recently in the preparation of the energetic exploitation of recyclable, non-hazardous municipal solid waste. With mechanical-biological waste treatment, 35-40% of the weight of this waste can be made appropriate for energetic exploitation, mainly for co-incineration in cement factories and power plants. The recoverability of waste derived fuel produced in mechanical-biological waste treatment plants highly depends on the burning and combustion technological properties of the mixture, and on its compounds influencing burning and different emissions. Waste recovery facilities do not take over fuel below a specific calorific value and over a given heavy metal, halogen and pollutant content. In our research we were looking for correlations in the particle size, calorific value, moisture-, ash- and heavy metal content of waste derived fuel. On the basis of the measurement results, the connection between the particle size fractions and the fuel properties can clearly be stated. The fractions of smaller particle size have higher moisture-, ash- and heavy metal content, while the fractions of bigger particle size have higher calorific value.

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Suspended sediment concentration and particle size distribution, and their relationship with heavy metal content

Journal of Earth System Science ◽

10.1007/s12040-012-0143-4 ◽

2012 ◽

Vol 121 (1) ◽

pp. 63-71 ◽

Cited By ~ 23

Author(s):

S H R SADEGHI ◽

M KIANI HARCHEGANI ◽

H A YOUNESI

Keyword(s):

Heavy Metal ◽

Particle Size ◽

Particle Size Distribution ◽

Size Distribution ◽

Suspended Sediment ◽

Metal Content ◽

Suspended Sediment Concentration ◽

Sediment Concentration ◽

Heavy Metal Content

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Heavy metal content in relation to particle size and organic content of surficial sediments in Miami River and transport potential

International Journal of Sediment Research ◽

10.1016/j.ijsrc.2016.05.004 ◽

2016 ◽

Vol 31 (4) ◽

pp. 324-329 ◽

Cited By ~ 29

Author(s):

Berrin Tansel ◽

Syed Rafiuddin

Keyword(s):

Heavy Metal ◽

Particle Size ◽

Metal Content ◽

Organic Content ◽

Heavy Metal Content ◽

Surficial Sediments ◽

Transport Potential

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Studies on Water Pollution due to Toxic Metals in Ulhas River Flowing along the Dombivli City of Mumbai, India

International Letters of Natural Sciences ◽

10.18052/www.scipress.com/ilns.38.66 ◽

2015 ◽

Vol 38 ◽

pp. 66-76

Author(s):

Amol M. Jadhav ◽

Pravin U. Singare

Keyword(s):

Heavy Metal ◽

Industrial Waste ◽

Metal Content ◽

Environmental Planning ◽

Waste Treatment ◽

Scientific Data ◽

Heavy Metal Content ◽

Pollution Level ◽

Toxic Heavy Metals ◽

Treatment Technology

Dombivli city is one of the most industrialized cities situated near Mumbai. The increase in industries, has led to increase in the discharge of industrial waste effluents from the industrial belt into the Ulhas River, due to improper environmental planning. This day by day increasing tremendous pollution load has prompted us to carry the systematic and detailed study on the heavy metal content in water of Ulhas River. The study was conducted over a period of two years i.e. in 2012 and 2013. The study was carried out along the banks of Ulhas River, near the discharge of effluents from Dombivli Industrial belt Phase I and Phase II. The sampling points were identified accordingly. The analysis for the majority of the toxic heavy metals like Mercury (Hg), Arsenic (As), Cadmium (Cd), Cobalt (Co), Lead (Pb), Nickel (Ni), Chromium (Cr), Copper (Cu), Zinc (Zn) and Iron (Fe) in water samples was done. The results of our study indicated that there is a need to conduct systematic and regular monitoring of pollution level along the Ulhas River with an intention to obtain the scientific data on heavy metal content in the river water. Such data will be useful to improve the industrial waste treatment technology adopted along the Dombivli industrial belt.

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Analysis of fly ash heavy metal content and disposal in three thermal power plants in India

Fuel ◽

10.1016/j.fuel.2006.04.031 ◽

2006 ◽

Vol 85 (17-18) ◽

pp. 2676-2679 ◽

Cited By ~ 105

Author(s):

S SUSHIL ◽

V BATRA

Keyword(s):

Heavy Metal ◽

Fly Ash ◽

Metal Content ◽

Power Plants ◽

Thermal Power ◽

Heavy Metal Content ◽

Thermal Power Plants

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Study of Physicochemical Characteristics of Kaolin from Belitung Regency

Indonesian Journal of Pharmaceutical Science and Technology ◽

10.24198/ijpst.v7i2.25675 ◽

2020 ◽

Vol 7 (2) ◽

pp. 38

Author(s):

Nurul Izzah Pasi ◽

Marline Abdassah Bratadireja ◽

Anis Yohana Chaerunnisa

Keyword(s):

Heavy Metals ◽

Heavy Metal ◽

Particle Size ◽

Metal Content ◽

Physicochemical Characteristics ◽

Heavy Metal Content ◽

Raw Material ◽

Test Results ◽

High Brightness

Kaolin is one of the abundant clay minerals on earth which has been widely used in various industries. kaolin as a raw material in drugs manufacturing must comply several requirements in Pharmacopoeia such as not exceeding the heavy metal content limits. In this study the analysis of heavy metal content (Pb, Sn, and As) was carried out on natural kaolin obtained from 3 different locations in Belitung regency. Testing of the brightness and particle size is also carried out to increase the value of kaolin as a pharmaceutical excipient. The highest recovery from kaolin was obtained in sample 3 which was 67.78%, while kaolin 1 and 2 which was 66.54, and 64.20%. Based on the results of heavy metal testing it is known that kaolin 1, 2, and 3 have a Pb content of 55.2, 0.0458 and 44.0 ppm, and As content of 1.05, 78.3, and 0.761 ppm. Whereas the Sn mean metal is only found in kaolin 2 which is 0.0034. White degree test results show that kaolin 1, 2 and 3 have a high brightness, namely 92.94%, 93.00%, 91.16%. From the results of particle size testing shows that all kaolin samples have size <2 μm.Keywords: Characterization of Minerals, Heavy Metals, Kaolin

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Study of The Pharmacological Activity and Heavy Metal Content of Eichhornia Crassipes Extract

ICONIET PROCEEDING ◽

10.33555/iconiet.v2i2.17 ◽

2019 ◽

Vol 2 (2) ◽

pp. 91-95 ◽

Cited By ~ 1

Author(s):

Jimmy Jimmy ◽

Diah Indriani Widiputri ◽

Paulus Gunawan

Keyword(s):

Heavy Metal ◽

Pharmacological Activity ◽

Water Hyacinth ◽

Metal Content ◽

Eichhornia Crassipes ◽

High Light Intensity ◽

Milling Process ◽

Heavy Metal Content ◽

Solvent Ratio ◽

Negative Impacts

Eichhornia crassipes is well-known as water hyacinth. Water hyacinth grows rapidly in the nutrient-rich water and high light intensity places. The uncontrollable growth of water hyacinth has caused many negative impacts to the environment. For instance, interrupted water transport and decreased population of aquatic lives. The capacity of utilising water hyacinth is slower than water hyacinth growth and water hyacinth is still considered as a threat to theecosystem. This work was focused on the study of the pharmacological activity and heavy metal content of water hyacinth in Lake Cipondoh, Tangerang. Fresh water hyacinth was pre-treated through oven-drying and milling process. After that, each part of the plant was macerated by using multiple extraction method with 96% ethanol/water and three variations of sample-to-solvent ratios (1:30, 1:50, and 1:75 w/v). The result of the experiment showed thatwater hyacinth leaves produced an extract with lowest IC 50 (55.76 ± 6.73 ppm) compared toother parts. The most optimum solvent used to achieve this result was 96% ethanol/water (1:1 v/v). In order to obtain the lowest antioxidant activity, the sample to solvent ratio used was 1:50 and the heavy metal in the extract was very low. With this result, it was concluded that there is a promising opportunity to apply the water hyacinth growing in Lake Cipondoh, Tangerang as herbal medicine ingredient. Through this utilization, the overall number of water hyacinth in Indonesia can be reduced or at the least be controlled, so that the environmental problem caused by this plant can be minimized.

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