Decomposition of organic wastes added to colliery spoils - their nitrogen, phosphorus and heavy metal transformation

1987 ◽  
Vol 13 (2-4) ◽  
pp. 305-319 ◽  
Author(s):  
F.Y. Tam
Keyword(s):  
Heavy Metal ◽  
Organic Wastes ◽  
Nitrogen Phosphorus

Advances in Researching Cultivation Techniques on the Hyperaccumulators Phytoremediation of Heavy Metal

2014 ◽  
Vol 955-959 ◽  
pp. 1903-1906
Author(s):  
Zi Yu Lin ◽  
Shao Hong You ◽  
Jin Xu ◽  
Yang Li ◽  
Chang Jie He
Keyword(s):  
Heavy Metal ◽  
Tissue Culture ◽  
Plant Tissue Culture ◽  
Aboveground Biomass ◽  
Metal Accumulation ◽  
Organic Fertilizer ◽  
Heavy Metal Accumulation ◽  
Research Progress ◽  
Cultivation Techniques ◽  
Nitrogen Phosphorus

Using phytoremediation technique to remove contaminants from soil had become a topic in current research.This article expounded the domestic and oversea research progress of hyperaccumulators on cultivation techniques and was systematically elaborated from many aspects,including variety selecting,seedling breeding,fertilizing (nitrogen phosphorus and organic fertilizer),usage of chelator and ameliorant,polyploid breeding,etc.The direction of hyperaccumulators research is put forward that the aboveground biomass and the heavy metal accumulation quantity should be raised through improving cultivation measures,meanwhile a new idea about research of plant tissue culture has been come up with.

scholarly journals The Effects of Organic Wastes on Soil and Cotton Quality with respect to the Risk of Boron and Heavy Metal Pollution

2016 ◽  
Vol 2016 ◽  
pp. 1-7
Author(s):  
Müzeyyen Seçer ◽  
Ömer Lütfü Elmaci ◽  
Şafak Ceylan
Keyword(s):  
Heavy Metal ◽  
Metal Pollution ◽  
Heavy Metal Pollution ◽  
Field Experiments ◽  
Organic Wastes ◽  
Mineral Fertilizers ◽  
Limit Value ◽  
Affected Plant ◽  
Fibre Fineness

The effects on soil and cotton quality of organic wastes from medicinal and aromatic plant factories were investigated with regard to the risks of boron and heavy metal pollution. Oily cumin, oregano, oilless oregano wastes, and mineral fertilizers were applied to cotton in two field experiments performed in the years 2003 and 2006. The Pb content of the soil differed significantly in the 2003 experiment and oregano wastes had significantly decreasing effect. Boron of soil to which oily cumin wastes had been applied reached a toxic limit value in 2006. Boron in soil adversely affected long fibres; B in leaves had a positive effect on the fineness of fibres in 2006. Soil Ni adversely affected plant height in 2006 and seed cotton yield in 2003. Leaf Ni had an adverse effect on fibre elasticity in 2006. Soil Co increased ginning out-turn and Cr decreased the fibre fineness of cotton in 2003.

Disposal of Mixed-Organic Wastes by Continuous High-Temperature Composting

2011 ◽  
Vol 396-398 ◽  
pp. 1984-1988
Author(s):  
Feng Wu Zhao ◽  
Jian Ping Liang ◽  
Gui Rong Wang ◽  
Xiao Ming Li
Keyword(s):  
Ribosomal Rna ◽  
Paenibacillus Polymyxa ◽  
Small Subunit ◽  
Organic Wastes ◽  
Bacillus Species ◽  
Carbon And Nitrogen ◽  
Rdna Sequences ◽  
Metal Contents ◽  
Phosphorus And Potassium ◽  
Nitrogen Phosphorus

The present investigation was conducted to degrade mixed-organic wastes using composting with the optimal parameters of pH, temperature, the ratio of carbon and nitrogen (C/N), moisture and oxygen contents. All these procedures can be carried out within a period of 30 days. After composting, we recorded decreases in total heavy metal contents and ascarid-egg mortality, significant increases of the humus, organic matter, nitrogen, phosphorus and potassium contents and the microorganism numbers in the compost. Furthermore, 6 strains of thermophilic bacterial were isolated from the produced compost. On the basis of their small-subunit ribosomal RNA-encoding DNA (rDNA) sequences and in comparison with authentic strains, the 6 strains were identified as belonging to Paenibacillus polymyxa and Bacillus species and thereby concluded to be the dominant microflora in the composting process.

scholarly journals Mineralization of carbon, nitrogen, phosphorus and sulphur from different organic wastes in silty clay loam soils

2016 ◽  
Vol 8 (1) ◽  
pp. 16-22
Author(s):  
Amit Mishra ◽  
Narendra Kumar ◽  
Rajiv Kumar ◽  
Robin Kumar ◽  
Dinesh Tomar
Keyword(s):  
Incubation Period ◽  
N Mineralization ◽  
Carbon Mineralization ◽  
Paper Mill ◽  
Organic Wastes ◽  
Silty Clay ◽  
Pine Needle ◽  
Press Mud ◽  
S Mineralization ◽  
Nitrogen Phosphorus

Mineralization of carbon, nitrogen, phosphorus and suphur was studied by incubating soil samples for 90 days at 30°C temperature with four different organic materials viz. Press mud, sugarcane trash, paper mill bagasse and pine needle. The results showed that the carbon mineralization in soil was significantly higher from sugarcane trash followed by press mud as compared to control. The cumulative percent of carbon mineralization increased with incubation period and maximum mineralization was recorded at 90 DOI (days after incubation). The maximum cumulative percent N-mineralization (16.88%) in soil was shown by paper mill bagasse followed by sugarcane trash and pine needle. The percent N-mineralization from all added organic amendments increased incubation period up to 45days of incubation DOI (days after incubation) after then it gradually declined, while the pine needles showed maximum cumulative P-mineralization in soil followed by sugarcane trash while minimum was recorded from press mud. The paper mill bagasse showed highest cumulative S-mineralization in soil followed by sugarcane trash. Irrespective of organic wastes, cumulative S-mineralization significantly increased after 15 days of incubation up to 45 days later on it showed declined trend. Among the organic wastes, sugarcane trash showed maximum Cmineralization in soil exhibited fast decomposition in comparison to other wastes. So, it can be used for composting.The paper mill bagasse showed more N and S mineralization while maximum mineralization of P was found in pine needle. The press mud and sugarcane trash showed potential for short duration enriched compost.

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