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UDC 628.35:316.12

Kofman V. Ya.

Extraction of nitrogen and phosphorus in the form of struvite  from wastewater with high nutrients concentration

Summary

The world reserves of phosphate ore total about 7000 mln tons among them 40 mln tons are used annually in fertilizer production. It is estimated that this resource will be depleted by 2090. In this connection exploring alternative renewable phosphorus sources is a critical task; therefore much attention is paid to developing economical and technically available methods of phosphorus extraction together with nitrogen from different wastewater types; one of the methods being nutrients precipitation  in the form of struvite (MgNH₄PO₄·6H₂O). Studies of struvite production from wastewater and its use as a fertilizer have been carried out in many countries of the world. Process schemes of struvite extraction from municipal wastewater, steel making and tanning wastes, coking process effluents, solid waste landfill filtrate, livestock and dairy farm wastewater as well as from black wastewater in the process of its decentra­lized processing have been developed. Studying the use of struvite as a fertilizer has been carried out almost 20 years already. Generally the prospects of investing in the production of this product for the agricultural sector are not disputed. The practice of production and supply of struvite as a fertilizer has been fairly developed in Japan. The application of struvite does not result in the increase of heavy metal concentration in farm crops. Fast dissolving fertilizers are not efficient when used on pastures or in forests where fertilization is practiced every few years. In this context the use of slowly dissolving fertilizers including struvite is more reasonable.

Key words

wastewater , nitrogen , phosphorous , struvite , filtrate of solid waste landfills , phosphatic fertilizers

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REFERENCES

1. Taylor A., Frazier A., Gurney E. Solubility products of magnesium ammonium phosphate. Transactions of Faraday Society, 1963, no. 59, pp. 1580–1584.
2. Kumar R., Pal P. Assessing the feasibility of N and P recjvery by struvite precipitation from nutrient-rich wastewater: A review. Environmental Science and Pollution Research, 2015, v. 22, pp. 17453–17464.
3. Kumar R., Pal P. Response surface-optimized Fenton’s pretreatment for chemical precipitation of struvite and recycling of water through downstream nanofiltration. Chemical Engineering Journal, 2012, no. 210, pp. 33–44.
4. Liu Y. H., Kwag J. H., Kim J. H., Ra C. S. Recovery of nitrogen and phosphorus by struvite crystalization from swine wastewater. Desalination, 2011, v. 277, no. 1–3, pp. 364–369.
5. Suzuki K., Tanaka Y., Kuroda K., et al. Removal and recovery of phosphorus from swine wastewater by demonstration crystallization reactor and struvite accumulation device. Bioresource Technology, 2007, v. 98, pp. 1573–1578.
6. Yilmazel Y. D., Demirer G. N. Removal and recovery of nutrients as struvite from anaerobic digestion residues from poultry manure. Environmental Technology, 2011, v. 32, pp. 783–794.
7. Larsen T. A., Peters I., Alder A., et al. Reengineering the toilet for sustainable wastewater management. Environmental Science and Technology, 2001, v. 35, pp. 192A–197A.
8. Kaikake K., Sekito T., Dote Y. Phosphate recovery from phosphorus-reach solution obtained from chicken manure inciniration ash. Waste Management, 2009, no. 29, pp. 1084–1088.
9. Dichtl N., Rogge S., Bauerfeld K. Novel strategies in sewage sludge treatment. Clean, 2007, v. 35, pp. 473–479.
10. Kabdasli I., Safak A., Tunay O. Bench-scale evaluation of treatment schemes incorporating struvite precipitation for young landfill leachate. Waste Management, 2008, v. 28, pp. 2386–2392.
11. Di Laconi C., Rossetti S., Lopez A., Ried A. Effective treatment of stabilized municipal landfill leachate. Chemical Engineering Journal, 2011, v. 168, pp. 1085–1092.
12. Kumar R., Pal P. A membrane-integrated advanced scheme for treatment of industrial wastewater: dynamic modelling towards scale up. Chemosphere, 2013, v. 92, pp. 1375–1382.
13. Lahav O., Telzhensky M., Zewuhn A., et al. Struvite recovery from municipal-wastewater sludge centrifuge supernatant using seawater NF concentrate as a cheap Mg (II) source. Separation and Purification Technology, 2013, v. 108, pp. 103–110.
14. Ueno Y., Fujii M. Three years’ experience of operating and selling recovered struvite from full-scale plant. Environmental Technology, 2001, v. 22, pp. 1373–1381.
15. El Diwani G., El Rafie S., El Ibiari N. N., El-Alia H. I. Recovery of ammonia nitrogen from industrial wastewater as struvite slow releasing fertilizer. Desalination, 2007, v. 214, pp. 200–214.
16. Ryu H. D., Lim C. S., Kang M. K., et al. Evaluation of struvite obtained from semiconductor wastewater as a fertilizer in cultivating Chinese cabbage. Journal of Hazardous Materials, 2012, v. 221, pp. 248–255.
17. Uysal A., Yilmazel Y. D., Demirer G. N. The determination of fertilizer quality of the formed struvite from effluent of a sewage sludge anaerobic digester. Journal of Hazardous Materials, 2010, v. 181, pp. 248–254.
18. Gaterell M. R., Gay R., Wilson R., et al. An economic and environmental evaluation of the opportunities for substituting phosphorus recovered from wastewater treatment works in existing UK fertilizer markets. Environmental Technology, 2000, v. 21, pp. 1067–1084.
19. Shu L., Schneider P., Jegatheesan V., Johnson J. An economic evaluation of phosphorus recovery as struvite from digester supernatant. Bioresource Technology, 2006, no. 97, pp. 2211–2216.
20. Munch E. V., Barr K. Controlled struvite crystallisation for removing phosphorus from anaerobic digester side streams. Water Research, 2001, v. 35, pp. 151–159.