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Utilization of waste gypsum in fertilizer production

References 1. Chojnacka, K., Barańska, M., Górecka, H. & Górecki, H. (2006). Utilization of animal bones, feather and wood ash in the making of mineral fertilizers. Przem. Chem. 85(8-9), 1256-1259 (in Polish). 2. Weigand, H., Bertau, M., Hubner, W., Bohndick, F. & Bruckert, A. (2013). RecoPhos: Full-scale fertilizer production from sewage sludge ash. Waste Manage. 33(3), 540-544. DOI: 10.1016/j.wasman.2012.07.009. 3. Rominski, M., Michalak, P., Jaskulski, D. & Jaskulska, I. (2011). Technology for manufacturing

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The Effect of Long -Term Fertilization on the Grain Bean Harvest in Agricultural Research - Development Station Secuieni, Neamţ County, Romania, Conditions

Abstract

The application of chemical fertilizers on the grain bean crop must be done due to the plant peculiarities (high consumption of nutrients, root system underrepresented, plant ability to synthesize up to 85% of the needed nitrogen) and its high sensitivity to stress conditions. Although the bean requirements for nutrients are high, the plant response to the application of fertilizers is smaller, the obtained production increase will vary widely depending on the type of fertilizer, the applied dose, but also on the climatic conditions in the area. The paper presents the experimental results, carried aut during 2008-2010 at Agricultural Research- Development Station Secuieni, Neamţ County, Romania (A.R.D.S. Secuieni- Neamţ), on the application of phosphorus and nitrogen fertilizers in a long - term experiences. By using the two fertilizers were obtained yield increases of 3-27%. These were directly proportional to the dose of the applied fertilizer. By applying the phosphorus fertilizer, the average production increases, compared with the control variant, were ranged from 7 to 15%. Average gains, obtained by the using of nitrogen fertilizers, compared with the control variant, were ranged from 12 to 27%. Marginal production increases, obtained by applying phosphorus fertilizers were of 1,52-2,92 kg beans/ kg P2O5, and at the nitrogen fertilizers, of 1,72-3,28 kg beans/ kg N. In both cases, the marginal increases obtained were inversely proportional to the doses of the apllied fertilizer.

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From sewage sludge ash to calcium phosphate fertilizers

Our work presents the results of the research on the utilization of ashes after sewage sludge combustion comprising phosphorus recovery in the form of useful products. The investigations were divided into three parts: selecting the combustion parameters of sewage sludge, examining ash leaching with mineral acids (nitric and phosphoric) to high phosphorus selectivity assuring a low content of iron and heavy metals in the extracted solutions and precipitation of CaHPO4 .2H2O. Suitable temperature of a sewage sludge combustion enables selective extraction of phosphorus compounds from ash because of hematite phase forming, insoluble in mineral acids. The extracts from phosphoric acid leaching, where the extraction of phosphorus compounds was 96.1%, have very good properties for its further use as the initial solution for CaHPO4 .2H2O with 6% lime milk. The obtained product is characterized by high purity and phosphorus availability compatible even with the feed phosphate standard.

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Environmental impact of fertilizer use and slow release of mineral nutrients as a response to this challenge

review. Nutr. Cycl. Agroecosyst. , 89, 229–255. DOI: 10.1007/s10705-010-9390-4. 14. Finck, A. (1992). Fertilizers and their efficient use. In: D.J. Halliday, M.E. Trenkel, W. Wichmann, (Eds.). World Fert. Use Man. , Paris: IFA. 15. Shaviv, A. (2000). Advances in controlled release fertilizers. Adv. Agron. , 71, 1–49. 16. Górecki, H. (2003). The environmental impact of fertilizer production and use. Przem. Chem. , 82(8–9), 833–836. 17. Hofman, G. & van Cleemput, O. (2004). Nitr. Soil Plant . Paris: IFA. 18. Follett, J.R., Follett, R

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Production of compound mineral fertilizers as a method of utilization of waste products in chemical company Alwernia S.A.

Production of compound mineral fertilizers as a method of utilization of waste products in chemical company Alwernia S.A.

The results of investigations on a possible utilization of waste products formed during the production of commercial and food inorganic salts are presented. Application of wastes in the production of compound fertilizers was suggested. The work covered a full research cycle starting from laboratory tests and ending on the production implementation. Fertilizer formulas were developed on the basis of laboratory tests. A possible production of fertilizers of suggested compositions was tested on a pilot plant scale. The compound fertilizer production with the use of waste raw materials was implemented in Chemical Company Alwernia S.A. It reduced the amount of wastes directed to industrial waste site.

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Nitrogen-Phosphorous Fertilizers on the Base of Concentrated Ammonium Nitrate Solution and Central Kyzylkum Phosphate Raw Material

authorities to prevent or inhibit the illegal use fertilizer in terrorist devices, Proceedings of the International Explosives Symposium, (pp. 129). Fairfax, Virginia. 4. Chernyshov, A., Levin, B., Tugolukov, A., Ogarkov, A. & Ilyin, V. (2009). Ammonium nitrate: properties, production, use. (pp. 544). Moscow: ZAO “INFOCHIM”, (in Russian). 5. Levin, B. & Sokolov, A. (2004). Technical decisions and problems of complex fertilizer production based on ammonium nitrate, IFA Technical Conference, 20-23 April, Beijing, China. 6. Il

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Rhizosphere Bacterial Communities of Arundo Donax Grown in Soil Fertilised with Sewage Sludge and Agricultural by-Products

grown on municipal sewage sludge. In Industrial Crops and Products , vol. 81 , pp. 72–82. DOI: 10.1016/j.indcrop.2015.11.052 KOMINKO, H. – GORAZDA, K. – WZOREK, Z. 2017. The possibility of organo-mineral fertilizer production from sewage sludge. In Waste and Biomass Valorization , vol. 8 , pp. 1781–1791. DOI: 10.1007/s12649-016-9805-9 NAKATANI, A.S. – MARTINES, A.M. – NOGUEIRA, M.A. – FAGOTTI, D.S.L. – OLIVEIRA, A.G. – BINI, D. – SOUSA, J.P. – CARDOSO, E.J.B.N. 2011. Changes in the genetic structure of Bacteria and microbial activity in an agricultural

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The effect of temperature on the efficiency of industrial wastewater nitrification and its (geno)toxicity

for the detection of environmental mutagens, Mutation Research , 310, pp.175–185. Greuter, D., Loy, A., Horn, M. & Rattei, T. (2016). ProbeBase – an online resource for rRNA-targeted oligonucleotide probes and primers: new features 2016, Nucleic Acids Research 10.1093/nar/gkv1232. Wen, J., Jia, X., Pan, L., Wang C. & Mao, G. (2005). Nitrifying treatment of wastewater from fertilizer production in a multiple airlift loop bioreactor, Biochemical Engineering Journal , 25, pp. 33–37. Juretschko, S., Timmermann, G., Schmid, M., Schleifer, K

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Kinetics of the continuous reaction crystallization of barium sulphate in BaCl2 - (NH4)2 SO4 - NaCl - H2O system - neural network model

technological-apparatus design of the process line for processing of used quenching salts. Inż. Ap. Chem. 38(1) 11-15 (in Polish). Matynia, A., Hoffmann, J. & Wlazło, P. (1999). Research on case used quenching wastes treatment process products utilization. Chem. Inż. Ekol. 6, 207-216 (in Polish). Matynia, A. (2002). Used quenching salts treatment process. Env. Prot. Eng. 28(2), 77-94. Matynia, A., Wlazło, P., Górecki, H. & Hoffmann, J. (2004). The way of liquid mineral fertilizer production

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Measuring and modelling the radiological impact of a phosphogypsum deposition site on the surrounding environment / Mjerenje i modeliranje radiološkog utjecaja odlagališta fosfogipsa na okoliš

prepare non-fired bricks by novel Hydration-Recrystallization process. Constr Build Mater 2012;34:114-9. doi: 10.1016/j.conbuildmat.2012.02.045 10. Bituh T, Marović G, Franić Z, Senčar J, Bronzović M. Radioactive contamination in Croatia by phosphate fertilizer production. J Hazard Mater 2009;162:1199-203. doi: 10.1016/j.jhazmat.2008.06.005 11. Bituh T, Vučić Z, Marović G, Prlić I. A new approach to determine the phosphogypsum spread from the deposition site into the environment. J Hazard Mater 2013;261:584-92. doi: 10.1016/j.jhazmat.2013

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