№5|2020

WASTEWATER TREATMENT

DOI 10.35776/MNP.2020.05.06
UDC 628.32:66.081.63

Pervov A. G., Tikhonov Konstantin

Domestic wastewater treatment by reverse osmosis

Summary

Possible treatment of domestic wastewater by the reverse osmosis with the purpose of producing high-quality effluent suitable for the discharge into fishery water bodies or for the use as process water has been investigated. Possible recycling of reject water from a reverse osmosis unit by drastically reducing the flow rate to the value less than 0.5–1% of the incoming flow and removing the reject water as a moisture component of the dewatered sludge is presented. Experiments have been carried out to determine the change in the concentration of dissolved solids in the filtrate of the membrane apparatus and a decrease in the membrane capacity in the process of wastewater treatment and reject water flow reduction. The obtained dependencies allow to determine the following: the required flow rate of the reject water depending on the concentration of suspended solids and COD; the required filtrate yield depending on the concentration of ammonium in raw wastewater. The methodology for determining the surface area of membranes and the number of membrane apparatus at each stage of wastewater treatment is described. The optimal values of working pressure, economic indicators of the unit in comparison with other wastewater treatment technologies were determined.

Key words

, , , , ,

Скачать/download (PDF) free access


REFERENCES

  1. Pervov Alexei, Tikhonov Konstantin, Dabrovski Woiciech. Application of reverse osmosis to treat high ammonia concentrated reject water from sewage sludge digestion. Desalination and water treatment. 110. 1-9. 10.5004/dwt.2018.22009.
  2. Dabrowski Wojciech, Pervov Alexei G., Tikhonov Konstantin V. [Use of reverse osmosis to modify biological wastewater treatment]. Vestnik MGSU, 2018, v. 13, no. 10 (120), pp. 1220–1233.
  3. Pervov A.G. [Solving the problem of waste discharge of stand-alone industrial facilities].wVodosnabzhenie i Sanitarnaia Tekhnika, 2011, no. 11, pp. 15–24. (In Russian).
  4. Lateef S. K., Soh B. Z., Kimura K. Direct membrane filtration of municipal wastewater with chemically enhanced backwash for recovery of organic matter. Bioresource Technology, 2013, no. 150, pp. 149–155.
  5. Thiago A. Nascimento, Fanny R. Mejía, Fernando Fdz-Polanco, Mar Peña Miranda. Improvement of municipal wastewater pretreatment by direct membrane filtration. Environmental Technology, 201738:20, 2562-2572. DOI: 10.1080/09593330.2016.1271017.
  6. McCarty P. L., Bea J., Kim J. Domestic wastewater treatment as a net energy producer – can this be achieved? Environmental Science and Technology, 2011, no. 45, pp. 7100–7106.
  7. Ravazzini A. M., van Nieuwenhuijzen A. F., van der Graaf J. H. M. J. Direct ultrafiltration of municipal wastewater: comparison between filtration of raw sewage and primary clarifier effluent. Desalination, 2005, no. 178, pp. 51–62.
  8. Pervov A.G., Andrianov A.P., Iurchevskii E.B. [Improving the design of membrane apparatus]. Vodosnabzhenie i Sanitarnaia Tekhnika, 2009, no. 7, pp. 48–52. (In Russian).
  9. Pervov A. G., Nguen K., Iurchevskii E. B. [Study of the impact of organic substances on the operation of reverse osmosis membranes]. Membrany i Membrannye Tekhnologii, 2019, v. 9, no. 5, pp. 334–347. (In Russian).
  10. Spitsov D. V. [The use of reverse osmosis systems for the reuse of domestic and storm wastewater in urban development]. Proceedings of the 2nd International Scientific and Practical Conference Dedicated to the Memory of S. V. Iakovlev, Academician of RAS. Moscow, 2011, pp. 336–337. (In Russian).
  11. Barker D. J., Stuckey D. C. A review of soluble microbial products (SMP) in wastewater treatment systems. Water Research, 1999, no. 33 (14), pp. 3063–3082.

vstmag engfree 200x100 2

mvkniipr ru

Российская ассоциация водоснабжения и водоотведения

Конференция итог

ecw20 200 300

VAK2