Disposal of Sewage Sludge and Municipal Refuse by the Occidental Flash Pyrolysis Process

1978 ◽  
pp. 287-306 ◽  
Author(s):  
EUGENE J. CONE
Keyword(s):  
Sewage Sludge ◽  
Pyrolysis Process ◽  
Flash Pyrolysis ◽  
Municipal Refuse

Flash pyrolysis of sewage sludge

1986 ◽  
Vol 25 (1) ◽  
pp. 265-270 ◽  
Author(s):  
Jan Piskorz ◽  
Donald S. Scott ◽  
Ian B. Westerberg
Keyword(s):  
Sewage Sludge ◽  
Flash Pyrolysis

Remediation of chromite ore processing residue by pyrolysis process with sewage sludge

2009 ◽  
Vol 100 (11) ◽  
pp. 2874-2877 ◽  
Author(s):  
Dalei Zhang ◽  
Hainan Kong ◽  
Deyi Wu ◽  
Shengbing He ◽  
Zhanbo Hu ◽  
...  
Keyword(s):  
Sewage Sludge ◽  
Pyrolysis Process ◽  
Chromite Ore Processing Residue ◽  
Chromite Ore ◽  
Ore Processing

CHARACTERIZATION OF COAL CHARS FROM A FLASH PYROLYSIS PROCESS BY CROSS POLARIZATION/MAGIC ANGLE SPINNING13C NMR

1984 ◽  
Vol 2 (4) ◽  
pp. 375-384 ◽  
Author(s):  
Mei-In M. Chou ◽  
Donald R. Dickerson ◽  
Dale R. McKay ◽  
James S. Frye
Keyword(s):  
Magic Angle ◽  
Cross Polarization ◽  
Pyrolysis Process ◽  
Flash Pyrolysis

scholarly journals PRODUÇÃO E CARACTERIZAÇÃO DE BIOCARVÃO A PARTIR DE BIOSSÓLIDOS ARMAZENADOS EM BAG’s GEOTÊXTEIS NO MUNICÍPIO DE RANCHARIA -SP

2019 ◽  
Vol 11 (4) ◽  
pp. 142-155
Author(s):  
Beatriz Regina de Ângelo ◽  
Rafaela Pelegrini Vital ◽  
Marcelo Rodrigo Alves ◽  
Jaqueline Oliveira da Silva ◽  
Melissa Arantes Pinto ◽  
...  
Keyword(s):  
Organic Matter ◽  
Sewage Sludge ◽  
Chemical Properties ◽  
Physical And Chemical Properties ◽  
Pyrolysis Process ◽  
Physical Chemical ◽  
Physical And Chemical ◽  
Stable Material ◽  
And Chemical Properties

Sewage sludge refers to a nutrient-rich by-product and organic matter from treatment plants and has become a challenge for many research segments to find a rational and sustainable destination for this material. In this context, the carbonization of biomass (by the pyrolysis process) results in biochar, characterized by a very stable material with specific physical and chemical properties and can represent a very important tool for this challenge. Thus, the objective of the present work was to transform, bypyrolysis process, small portions of the biosolid generated in Rancharia ETE into biochar. In addition, both the biosolid and the generated bicarbons were subjected to physical, chemical and structural analyzes in order to proceed with their respective characterization. From the analysis, it was found that the treatment submitted to temperature of 550°C as the best option for possible applications.Keywords:biosolid; pyrolysis; biochar.

scholarly journals The pyrolysis process of sewage sludge

2015 ◽  
Vol 653 ◽  
pp. 012032
Author(s):  
V F Kosov ◽  
O M Umnova ◽  
V M Zaichenko
Keyword(s):  
Sewage Sludge ◽  
Pyrolysis Process

INCUBATION OF PULVERIZED HOUSEHOLD REFUSE WITH SOIL AND SEWAGE SLUDGE, POULTRY MANURE OR (NH4)2SO4

1981 ◽  
Vol 61 (1) ◽  
pp. 109-121 ◽  
Author(s):  
L.A. LOEWEN-RUDGERS ◽  
LARRY D. KING ◽  
L.R. WEBBER
Keyword(s):  
Sewage Sludge ◽  
Poultry Manure ◽  
Dry Weight ◽  
Soil Incubation ◽  
Liquid Manure ◽  
Inorganic N ◽  
Nitrate N ◽  
Municipal Refuse ◽  
Digested Liquid ◽  
Land Disposal

Pulverized household refuse (C/N ratio of 60:1) was incubated with Guelph loam (refuse rate of 3.5 or 7%) and sufficient anaerobically digested liquid sewage sludge, liquid poultry manure or (NH4)2SO4 to result in an added waste C/N ratio of 45:1 to 15:1. Most decreases in dry weight occurred during the first 168 days, suggesting that the more readily decomposable organic materials were nearly decomposed by 168 days. Dry weight decreases suggested that rate of refuse decomposition was not influenced by amount of supplemental N or by N carrier, probably because the soil and/or the refuse supplied substantial N. Incubation of refuse and high-N waste with soil resulted in considerably lower nitrate levels than incubation of high-N waste with soil. Incubation of refuse with soil resulted in lower nitrate levels than incubation of soil alone. In most treatments including refuse, nitrate N decreased from 108 ppm to less than 10 ppm at 28 days, remained low until 168 days and then increased. At incubation termination (224 days), nitrate levels in most treatments including refuse were similar to or lower than that for the control (~130 ppm NO3−-N). However, nitrate N levels varied from 214 ppm to 534 ppm at 224 days for those treatments which included 3.5% refuse and the highest level of high-N waste. Decreases in total inorganic N increased with increasing amounts of inorganic N applied, suggesting that immobilization and/or losses through processes such as NH3 volatilization increased with amount of inorganic N applied. Results supported the conclusion derived from associated field and lysimeter studies that were reported elsewhere, that simultaneous land disposal of pulverized municipal refuse and high-N wastes such as liquid sewage sludge or liquid manure is feasible. However, the inorganic N supplying power of the soil should be determined before waste application so that waste levels can be adjusted to avoid large accumulations of nitrate.

Corrosion and Deposits from Combustion of Solid Waste—Part VII: Coincineration of Refuse and Sewage Sludge

1980 ◽  
Vol 102 (3) ◽  
pp. 698-705 ◽  
Author(s):  
H. H. Krause ◽  
P. W. Cover ◽  
W. E. Berry ◽  
R. A. Olexsey
Keyword(s):  
Sewage Sludge ◽  
Stainless Steels ◽  
Cost Effective ◽  
Metal Temperature ◽  
Low Alloy Steels ◽  
Gas Temperature ◽  
Corrosion Rates ◽  
Prevention Measure ◽  
Alloy Steels ◽  
Municipal Refuse

Corrosion probe exposures were conducted in the Harrisburg, Pennsylvania, incinerator to determine the effects of burning low-chloride sewage sludge with municipal refuse. Probes having controlled temperature gradients were used to measure corrosion rates for exposure times up to 816 hours. The effects of exposure time, metal temperature, and gas temperature were studied. The results demonstrated that the addition of the sludge reduced the initial corrosion rates of carbon and low-alloy steels to about half that from refuse alone. Little effect was observed on the rates for Types 310 and 347 stainless steels. An aluminized coating on steel resisted corrosion effectively and offers promise as a cost-effective substitute for expensive alloys. In the range 500–900° F the corrosion rates of carbon steel and T22 increased with temperature while those for the stainless steels decreased. Reducing the flue gas temperature from 1500° F to 1100° F reduced corrosion rates significantly and made them less dependent on metal temperature. The addition of low-chloride sludge to refuse is recommended as a corrosion prevention measure and a waste disposal technique.

Arsenic Mitigation Approach in Soil by Some Indigenous Sources of Biochar Made at Low Pyrolysis Temperature

2020 ◽  
pp. 93-108
Author(s):  
N. Ferdousi ◽  
S. M. Imamul Huq
Keyword(s):  
Sewage Sludge ◽  
Poultry Manure ◽  
Nutrient Content ◽  
Water Soluble ◽  
Future Application ◽  
Cow Dung ◽  
Pyrolysis Process ◽  
Incubation Study ◽  
And Behavior

Biochar is being reported now a-days to potentially reduce the bioavailability of arsenic (As). A pot culture and an in vitro incubation study was conducted to evaluate the efficacy of biochar produced from different sources (viz., cow dung, poultry manure and sewage sludge) at low temperature (250ºC) on the phytoavailability of As. An experimental setup containing two sets of treatments (As and no-As) were followed. Biochar was applied at the rate of 5t/ha to the soils that received As treatment at a rate of 1mg/L As (80% arsenite and 20% arsenate). After 45 days of growth of Kalmi (Ipomoea aquatica), plant and soil samples were analyzed. Biochar insignificantly increased plant growth.  Biochar was observed to be more effective in alleviating As accumulation in plant than the biomass. The incubation study was done for 0, 15, 30 and 45 days to diagnose the temporal sorption of water soluble As by biochars. All the biochar materials reduced As availability than their corresponding biomass materials. Measurement of different physical (e.g. surface area, morphology, elemental composition), chemical (CEC, nutrient content, As) and physicochemical (pH) properties of the biochar showed that through pyrolysis process nitrogen(N), sulfur (S), phosphorus (P) content and pH of the biomass decreased and on the other hand potassium (K), As content and CEC increased. Slow pyrolysis process and variation in biomass material influenced the properties and behavior of biochar. Among the biochars, sewage sludge biochar showed the maximum and cowdAsung showed the minimum sorption capacity for As. Due to the threat of As to health and environment, this topic requires more consideration.  Moreover, covering all the above issues, this study identifies research gaps in the use of biochar as an adsorbent for As and proposes potential areas for future application of biochar.

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