Aging of steel 12Kh1MF heated in water with organic additives

1994 ◽  
Vol 37 (4) ◽  
pp. 367-370
Author(s):  
O. V. Sizova ◽  
S. F. Podboronnikov ◽  
N. N. Kotov ◽  
L. B. Zuev
Keyword(s):  
Organic Additives ◽  
Steel 12Kh1mf

INFLUENCE OF SOME NATURAL ORGANIC ADDITIVES ON THE QUALITY OF VEGETAL COMPOST

2016 ◽  
Vol 15 (5) ◽  
pp. 1041-1048
Author(s):  
Irina Smical ◽  
Adriana Muntean ◽  
Valer Micle
Keyword(s):  
Organic Additives

Composting of Sewage Sludge of Moscow Waste Water Treatment Plants Using Recycling Filler

2007 ◽  
Vol 2 (1) ◽  
Author(s):  
D.A. Danilovich ◽  
M.N. Kozlov ◽  
V.I. Sklyar ◽  
Yu.A. Nikolaev ◽  
N.M. Shchegolkova ◽  
...  
Keyword(s):  
Waste Water ◽  
Water Treatment ◽  
Waste Water Treatment ◽  
Maximum Temperature ◽  
Waste Waters ◽  
Organic Additives ◽  
Organoleptic Properties ◽  
Water Treatment Plants ◽  
Waste Water Treatment Plants ◽  
The City

This work demonstrates a possibility of composting of municipal waste waters sludge (WWS) digested during 5-7 days, of the Kuryanovo waste water treatment plants (the city of Moscow) without the use of traditional organic additives – sawdust, peat, thatch. As a recycling filler (repeatedly used), enhancing the porosity of the composted mixture, ribbed polyethylene spheres (∅=8 cm) and wood chips (having dimension of 5-10 cm) were used. Composting was performed efficiently in both cases, however, the use of wood ships had technological and economical advantages. The process of composting was carried out during 2-4 weeks and was composed of classical phases of active heating (a rate of 0.2-0.3oC/h was obtained), maintaining of maximum temperature during 1-2 days, and cooling down to the ambient temperature. During the course of composting, a product was obtained, having attractive organoleptic properties, suitable for application in municipal laying-out of greenery.

scholarly journals Correction to An Unreacted Shrinking Core Model Serves for Predicting Combustion Rates of Organic Additives in Clay Bricks

2021 ◽  
Vol 35 (5) ◽  
pp. 4616-4616
Author(s):  
Florian Wesenauer ◽  
Christian Jordan ◽  
Mario Pichler ◽  
Aron Frei ◽  
Mudassar Azam ◽  
...  
Keyword(s):  
Core Model ◽  
Shrinking Core Model ◽  
Organic Additives ◽  
Clay Bricks ◽  
Shrinking Core

scholarly journals Evaluation of compost quality from municipal solid waste integrated with organic additive in Mizan–Aman town, Southwest Ethiopia

BMC Chemistry ◽  
2021 ◽  
Vol 15 (1) ◽  
Author(s):  
Masresha Mamo ◽  
Henok Kassa ◽  
Lalit Ingale ◽  
Stefaan Dondeyne
Keyword(s):  
Municipal Solid Waste ◽  
Solid Waste ◽  
Organic Additive ◽  
Chemical Characteristics ◽  
Lettuce Seed ◽  
Organic Additives ◽  
Lettuce Plant ◽  
Compost Quality ◽  
Physico Chemical ◽  
Phytotoxicity Test

Abstract Background The present study evaluated the compost quality from municipal solid waste (MSW) and organic additives of coffee by-products and leaf of Millettia ferruginea. Compost sample (n = 30) was taken from fresh compost materials and MSW and different organic additive treatments (T1, T2, T3, T4, and T5). Compost treatments phytotoxicity test was conducted using lettuce seed (Lactuca Sativa L. var. crispa). Analysis of variance (ANOVA) was performed using SPSS (version 22) on major compost quality characteristics. Results The compost Physico-chemical characteristics like temperature (26.4 °C), moisture content (45.5%), electrical conductivity (4.6 mS/cm), pH (7.9), total nitrogen (1.2%) and phosphorous content (2918 ppm) in T4 and T5 were analogous but both are significantly different from T3, T2 and T1 compost treatments. Phytotoxicity test using 100% compost treatment media showed that T4 (101%) and T5 (102%) are phytonutrient for lettuce plant. While, T3 and T2; and T1 compost treatments are non-phytotoxic and moderately phytotoxic respectively to lettuce plant. Conclusion Therefore, compost from MSW + M. ferruginea (T4) and MSW + coffee pulp + M. ferruginea (T5) are important for improving the physico-chemical characteristics of compost and are phytonutrient for lettuce plant. Thus, for effectively management of the 75% of organic fraction of waste generated from households in the study area, recycling methods like composting with organic additives must be used at large.

scholarly journals Synthesis of magnesium carbonate hydrate from natural talc

2020 ◽  
Vol 18 (1) ◽  
pp. 951-961
Author(s):  
Qiuju Chen ◽  
Tao Hui ◽  
Hongjuan Sun ◽  
Tongjiang Peng ◽  
Wenjin Ding
Keyword(s):  
Crystal Structure ◽  
Particle Size ◽  
Crystal Growth ◽  
Crystal Morphology ◽  
Magnesium Carbonate ◽  
Organic Additives ◽  
X Ray Diffraction ◽  
Morphological Transformation ◽  
X Ray ◽  
Carbonation Process

AbstractVarious morphologies of magnesium carbonate hydrate had been synthesized without using any organic additives by carefully adjusting the reaction temperature and time during the talc carbonation process. At lower temperatures, magnesium carbonate hydrate was prone to display needle-like morphology. With the further increase of the carbonation temperature, the sheet-like crystallites became the preferred morphology, and at higher aging temperatures, these crystallites tended to assemble into layer-like structures with diverse morphologies, such as rose-like particles and nest-like structure. The reaction time had no effect on the crystal morphology, but it affected the particle size and situation of the crystal growth. X-Ray diffraction results showed that these various morphologies were closely related to their crystal structure and compositions. The needle-like magnesium carbonate hydrate had a formula of MgCO3·3H2O, whereas with the morphological transformation from needle-like to sheet-like, rose-like, and nest-like structure, their corresponding compositions also changed from MgCO3·3H2O to 4MgCO3·Mg(OH)2·8H2O, 4MgCO3·Mg(OH)2·5H2O, and 4MgCO3·Mg(OH)2·4H2O.

scholarly journals Comprehensive analysis of direct aqueous mineral carbonation using dissolution enhancing organic additives

2012 ◽  
Vol 9 ◽  
pp. 334-346 ◽  
Author(s):  
Benjamin Bonfils ◽  
Carine Julcour-Lebigue ◽  
François Guyot ◽  
Françoise Bodénan ◽  
Pierre Chiquet ◽  
...  
Keyword(s):  
Comprehensive Analysis ◽  
Mineral Carbonation ◽  
Organic Additives

Influence of Some Organic Additives on the Extractive Separation of Americium(III) by Sulfoxides

1982 ◽  
Vol 17 (13-14) ◽  
pp. 1577-1585 ◽  
Author(s):  
J. P. Shukla ◽  
M. S. Nagar ◽  
M. S. Subramanian
Keyword(s):  
Organic Additives ◽  
Extractive Separation

scholarly journals Organic-free synthesis of layer-like FAU-type zeolites

2015 ◽  
Vol 51 (2) ◽  
pp. 279-281 ◽  
Author(s):  
A. Inayat ◽  
C. Schneider ◽  
W. Schwieger
Keyword(s):  
Inorganic Salts ◽  
Zeolite Synthesis ◽  
Organic Additives

The presence of simple inorganic salts during zeolite synthesis turned out to be an effective and easy to handle alternative to organic additives to induce the growth of layer-like zeolite morphologies.

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