EVALUATION OF THE POTENTIAL RISKS OF SEWAGE SLUDGE COMPOST ON THE SOIL-PLANTS SYSTEM
Journal Title: ISB-INMA TEH AGRICULTURAL AND MECHANICAL ENGINEERING - Year 2017, Vol 0, Issue 1
Abstract
The composting process is considered as an economically and environmentally viable alternative to hygienization and stabilization sewage sludge from small sewage treatment plants, from non-industrialized cities.The main purpose of the paper is to determine the degree of phytotoxicity as well as the quality parameters of the two compost mixes obtained from sewage sludge with cereal straw (CSSS), sewage sludge with shredded paper (SPSS) and a compost derived from household waste (HW). Normalized germination index values (NGI) for two dilutions (1:10 v/w and 1:20v/w) indicate low compost toxicity (SPSS) as demonstrated by the ATR-FTIR analysis, demonstrating the presence of polyethylene (PELD and PET) with decreased degradation level due to plastic paper. We note that for all three calculated quality indices (RSI, EI and DQI). significant values (p-value <0.001) are obtained when using the sewage sludge with cereal straw compost (CSSS) as the substrate.
Authors and Affiliations
Alexandru Grosu, V. Stan, P. M. Matei, I. D. Barbulescu, E. M. Dusa, R. M. Majdar, N. Vranceanu
Keywords
Related Articles
- EP ID EP461257
- DOI -
- Views 129
- Downloads 0
GENERAL CONSIDERATIONS ON REED HARVESTING MACHINE FROM WETLANDS SUITABLE FOR ITS GROWING
Discussions about the need for renewable energy, the need for nature conservation, the need to wish to reduce dependency on dwindling oil resources, show that these issues are intimately related and sometimes mutually ex...
RESEARCHES ON THE ACID HYDROLYSIS OF THE PEAT FOR THE REALIZATION OF BIOSTIMULATORS FOR THE GROWTH OF PLANTS
The paper presents the results of the research carried out for obtaining, through acid hydrolysis of peat, some biostimulators (humic acids, fulvic acids) for the growth of plants. The experiments were carried out in two...
RESEARCHES ON THE BIOCHEMICAL COMPOSITION OF SAMBUCUS EBULUS L. LEAVES AND THEIR ORIENTATION FOR NATURAL TREATMENTS
The purpose of the research was to demonstrate the importance of knowing the biochemical composition of leaves of Sambucus ebulus L.. a spontaneous flora plant which, under the direct knowledge of its properties, can be...
STUDY ON SENSITIVITIY OF THE MAIZE HYBRID RUSE 424 AND ITS PARENT FORMS TO HERBICIDES USED AGAINST SORGHUM HALEPENSE
In the period 2008 2010, in the experimental field of Institute of Agriculture and seed science "Obraztsov Chiflik" Russe on the soil type of highly leached chernozem was tested the resistance of corn hybrid RS 424 and i...
RESEARCH ON POLLEN VITALITY CORRELATED TO METEOROLOGICAL CONDITIONS AT ROMANIAN VARIETIES OF PEACH AND NECTARIN
In order to know exactly the productive potential of a variety(genotype) and for choosing pollinator (genitor), to create new varieties, as well as for the anticipated appreciation of the economic results, methods are us...