Radu Lacatusu, Anatoli Kiselev, Venera Mihaela Stroe, Nineta Rizea, Mihaela Lungu, Rodica Lazar, Mihaela Monica Stanciu-Burileanu, Ilie Calciu, Roxana Gabriela Popa, Laurentiu Filipescu<br>Plant Growth Suitable Nutritive Red Mud Composite <br>Materials from the Romanian Dry Landfilled Red Mud <br>II. Formulation nutritive composite materials and plant growth <br>tests at laboratory and glasshouse scale

Radu Lacatusu, Anatoli Kiselev, Venera Mihaela Stroe, Nineta Rizea, Mihaela Lungu, Rodica Lazar, Mihaela Monica Stanciu-Burileanu, Ilie Calciu, Roxana Gabriela Popa, Laurentiu Filipescu
Plant Growth Suitable Nutritive Red Mud Composite
Materials from the Romanian Dry Landfilled Red Mud
II. Formulation nutritive composite materials and plant growth
tests at laboratory and glasshouse scale

Abstract:

According the red mud chemical and agrochemical properties evaluated in the previous paper, there were set up two experiments concerning individual types of nutritive red mud composite formulations. Adjuvant materials selected for deep changes in the basic red mud agrochemical properties were: phosphogypsum (PG), sludge from urban biological waste water treatment factories (SWBT), sludge from water softening stage in chemical plants (SWCT), organic compost (OC), marine algae debris (MA), wood sawdust (WS), acidic peat (AP) and acidic soil (AaS) from Albota region, Romania. Agrochemical analysis of the adjuvant materials and the first type of nutritive red mud composite materials has shown that adjuvant materials themselves and all formulated composites are conveying a large dowry of mineral salts with neutral (PG, OC and MA), and alkaline (SWBT and SWCT) reaction, containing macro, mezzo and micronutrients at variable concentrations. Satisfactory concentrations of organic carbon have been carried in by SWBT (17%), OC (9.2%) and MA (1-8 %) and most all the adjuvant materials and more than that, enough buffering capacity and nutritive ionic species to sustain the crops growth. In the first type of red mud composite material, theoretical expected changes might accomplish a real conversion of the red mud into a nutritive composite material. But, soluble salts contents ranging from 1.874 to 2.888 mg/100g composite mixture, with dominant molecular species sodium carbonate did lead to rather infertile composite formulations. The second type of red mud composite materials SWBT and MA were replaced by the rich carbon and high power buffering materials as WS, AP and AaS and the ratios adjuvant materials/RM were increased to 700/1000 - 900/1000. Study of Triticum durum response to this new type of red mud composite has shown a real emerging fertility in these materials and sustainability in plants crop growth. This was an encouraging step toward better balanced formulations. Keywords: red mud, composite materials, agrochemical properties, plant growth, Triticum durum

Issue: 2014, Volume 65, Issue 11

Pages:

Download Pdf Article

This article is published under the Creative Commons Attribution 4.0 International License

<<<< back

PUBLISHING SECTION

Author Guidelines

* Paper Drafting

* Paper Template

* Ethical Statement

* Paper Submission

Ghidul Autorului (ro)

Open Access & Archiving Policy

Search Authors

LATEST NEWS
	NUMAR OMAGIAL PETRU PONI.. detalii
	Revista de Chimie - 70 de ani de aparitie neintrerupta.. detalii
	English-Romanian Dictionary for Mechanical Engineering (download pdf)

News, Events

Gold Open Access | Source=http://www.plos.org/ | Author=art designer at PLoS

Conferences of Contemporary
Chemistry

Biblioteca Chimiei

Materiale Plastice

REVISTA DE CHIMIE

About

Board

Indexing