Conserving Toxic Ammoniacal Nitrogen in Manure Using Natural Zeolite Tuff: A Comparative Study

1998 ◽  
Vol 60 (1) ◽  
pp. 126-133 ◽  
Author(s):  
I. M. Dwairi
Keyword(s):  
Comparative Study ◽  
Natural Zeolite ◽  
Ammoniacal Nitrogen ◽  
Zeolite Tuff

Comparative study of natural zeolite, activated carbon and green sand as a catalyst support for ozone decomposition

2020 ◽  
Author(s):  
Rohimmahtunnissa Azhar ◽  
Reynaldi Rachmat ◽  
Enjarlis Enjarlis ◽  
Eva Fathul Karamah ◽  
Setijo Bismo
Keyword(s):  
Activated Carbon ◽  
Comparative Study ◽  
Natural Zeolite ◽  
Catalyst Support ◽  
Ozone Decomposition ◽  
Green Sand

A comparative study for the stabilisation of heavy metal contaminated sediment by limestone, MnO2 and natural zeolite

2016 ◽  
Vol 24 (1) ◽  
pp. 795-804 ◽  
Author(s):  
Yuanjie Yi ◽  
Jia Wen ◽  
Guangming Zeng ◽  
Taotao Zhang ◽  
Fenghu Huang ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Comparative Study ◽  
Natural Zeolite ◽  
Contaminated Sediment

scholarly journals Neutralization of sludge and purification of wastewater from Sindos industrial area of Thessaloniki (Greece) using natural zeolite

2017 ◽  
Vol 47 (2) ◽  
pp. 920 ◽  
Author(s):  
A. Filippidis ◽  
A. Godelitsas ◽  
N. Kantiranis ◽  
P. Gamaletsos ◽  
E. Tzamos ◽  
...  
Keyword(s):  
Natural Zeolite ◽  
Industrial Wastewater ◽  
Oxygen Demand ◽  
Industrial Area ◽  
Quality Parameters ◽  
Clear Water ◽  
High Quality ◽  
Type Zeolite ◽  
Zeolite Tuff

The commixture of sludge from Sindos industrial area of Thessaloniki with high quality HEU-type natural zeolite (tuff with 86 wt.% clinoptilolite-heulandite) in equal proportions, resulted in odourless and cohesive zeosludge. Also, the treatment of wastewater of pH 7.8 from the same area with high quality HEU-type natural zeolite (88 wt.% clinoptilolite-heulandite) resulted in production of clear water of pH 7.3, free of odours and improved quality parameters by 60% for the NO3 - content, 76% for the chemical oxygen demand (COD), 100% for P2O5 and Cr contents. Simultaneously, a precipitate of odourless and cohesive zeosludge was produced. The odourless and cohesive zeosludge produced either by the commixture of sludge with the natural zeolite or as precipitate from the treatment of industrial wastewater with the natural zeolite and coagulants, is suitable for safe deposition, since the fixation of the hazardous components in the micro/nano-pores of the HEU-type zeolite, as well as the meso- and macro-porous of natural zeolite, prevents their leaching by the rain water, protecting thus the quality of soils, surface and ground waters.

scholarly journals COMPOSITION AND MOLECULAR-SORPTION PROPERTIES OF THE ZEOLITE TUFF OF THE DEPOSITNEAR THE GREAT LULYA RIVER

2017 ◽  
Vol 13 (3) ◽  
pp. 21-25
Author(s):  
Tat'yana Nikolaevna Smorodinova ◽  
Margarita Kondrat'evna Kotvanova
Keyword(s):  
Phase Composition ◽  
Molecular Sieve ◽  
Natural Zeolite ◽  
Raw Materials ◽  
Sorption Properties ◽  
Dynamic Conditions ◽  
Molecular Sorption ◽  
Branched Structure ◽  
Zeolite Tuff ◽  
Area Of Application

The elemental and phase composition of the natural zeolite tuff of the deposit near the Great Lulya river have been studied. The molecular sieve properties of zeolite tuff under dynamic conditions on model mix- tures of C6-C14 hydrocarbons have been studied. The possibility of separation of hydrocarbons of a normal and branched structure is shown. Thus, one more area of application of natural regional raw materials has been revealed.

scholarly journals POZZOLANE AND CORROSION-INHIBITING PROPERTIES OF THE NATURAL ZEOLITE TUFF

2020 ◽  
Vol 5 (8) ◽  
pp. 78-86
Author(s):  
T. Smorodinova ◽  
M. Kotvanova
Keyword(s):  
Cement Paste ◽  
Natural Zeolite ◽  
Cement Stone ◽  
Leaching Kinetics ◽  
Reaction Products ◽  
Natural Pozzolan ◽  
Sulfate Ions ◽  
Hydrolysis Of ◽  
Zeolite Tuff ◽  
Anticorrosion Properties

In this article the activity of the zeolite tuff of the Lulinsky deposit of Khanty-Mansiysk autonomous okrug –Yugra to calcium and sulfate ions has been evaluated . The components of zeolite tuff bind these ions to sparingly soluble products. The experimental results obtained show that tuff can be used as a natural pozzolan. Concerning the reaction products, the dynamics of the phase composition of cement paste with the zeolite tuff additives during hardening is shown. Supplementation promotes hydrolysis of alite, while the content of calcium hydrosulfoaluminate increases. The dynamics of strength and the compression of cement paste without an additive and with the zeolite tuff additive are estimated. The possibility and efficiency of using of zeolite tuff as a reinforcing additive to Portland cement is shown. It was found that a 5 % zeolite tuff additive with a particle size of 5-10 μm at 7 days increases the compressive strength by 15 %, and at 28 days by 21 %. The study of the calcium hydroxide leaching kinetics from cement stone is showed that a 5 % zeolite tuff additive leads to suppression of the leaching process and indicates anticorrosion properties of additives.

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