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MODELING PROCESSES OF CENTRIFUGAL SEPARATION AND ULTRAFILTRATION OF WASTEWATER ON LIVESTOCK FARMS

https://doi.org/10.34677/1728-7936-2019-3-27-35

Abstract

Ecologization of animal husbandry is determined by the efficiency of manure disposal in agricultural fields. Manure effluents are formed as a result of livestock keeping without litter and they contain pathogenic bacteria, helminth eggs and larvae. For the treatment of manure effluents as multicomponent substances, the authors have proposed a technology including their separation into solid and liquid fractions in a precipitation centrifuge with a screw sediment discharge and subsequent deworming of the liquid fraction in an ultrafiltration installation. To evaluate the effectiveness of the technology, the methods of mathematical modeling were applied. The methods are based on both original approaches to the centrifugation process with the determination of local fractional degrees of capturing and the integral degree of cleaning, and conventional ones consisting in the ultrafiltration process based on the diffusing of a substance through a semipermeable partition under the action of a pressure gradient. The research was carried out in a livestock breeding farm enterprise. According to the results of mathematical modeling, it was established that for a given performance of 3.. .4 m3/h all considered centrifuges of the ОГШ type provide 97% degree of manure removal from the solid fraction, while according to the energy efficiency criterion, it is advisable to recommend the ОГШ-202K-03 machine with the drive power of 5.5 kW. It was found that to clean the liquid fraction from pathogenic microorganisms, an increase in the operating pressure p from 0.1 to 0.7 MPa is accompanied by a decrease in the area F of the membrane filter partition of the МФАС-Б-4 and МФАС-П-2 type from 78.2 to 11.2 m2 for membrane type МФАС-МА-6 - respectively from 33.0 to 4.7 m2. It was found that at an operating pressure of 0.2 MPa, according to the criteria of energy intensity of the process and material capacity of the ultrafiltration installation, it is advisable to use a МФАС-П-3 membrane type with a filter partition area of 2.73 m2.

About the Authors

ANDREY E. Novikov
Volgograd State Technical University; All-Russian Research Institute of Irrigated Agriculture
Russian Federation


VIKTOR A. Shevchenko
All-Russian Research Institute of Hydraulic Engineering and Land Reclamation
Russian Federation


MAKSIM I. Filimonov
Volgograd State Technical University; All-Russian Research Institute of Irrigated Agriculture
Russian Federation


References

1. Новиков С.А., Шевченко В.А., Соловьев А.М. [и др.]. Использование соломы и стоков животноводческих комплексов при возделывании зерновых культур // Плодородие. 2014. № 5. С. 32-34.

2. Просвиряк П.Н., Шевченко В.А., Цыбизов В.А. Технология использования жидких стоков свиноводческих комплексов при возделывании кукурузы в условиях Верхневолжья // Плодородие. 2011. № 6. С. 39-41.

3. Яковлев С.В., Прозоров И.В., Иванов Е.Н. [и др.]. Рациональное использование водных ресурсов. М.: Высш. шк., 1991. 400 с.

4. Киров Ю.А. Повышение эффективности процесса разделения навозных стоков свиноводческих ферм и комплексов на фракции совершенствованием способов и технических средств: Автореф. дис.. д-ра техн. наук. Саратов, 2013. 42 с.

5. МУ 2156-80. Методические указания по осуществлению государственного санитарного надзора за системами сбора, удаления, хранения, обеззараживания и использования навоза и навозных стоков животноводческих комплексов и ферм промышленного типа. Утв. 12.03.1980. 17 с.

6. РД-АПК 1.10.15.02-17. Методические рекомендации по технологическому проектированию систем удаления и подготовки к использованию навоза и помета. М., 2017. 167 с.

7. Голованчиков А.Б., Новиков А.Е., Филимонов М.И. [и др.]. Моделирование гидродинамических процессов в центробежном поле гидроциклонов: Монография. Вол­гоград, 2017. 200 с.

8. Голованчиков А.Б., Новиков А.Е., Филимонов М.И. [и др.]. Физическое и математическое моделирование процессов центрифугирования: Монография. Волгоград, 2018. 157 с.

9. Максименко В.П., Зайцев С.А. Регулирование качества поливной воды на оросительных системах // Природообустройство. 2011. № 5. С. 15-20.

10. Телюбаев Ж.Б. Повышение качества переработки отходов животноводства для получения удобрений // АПК России. 2017. Т. 24. № 2. С. 508-515.

11. Turner C., Burton C.H. The inactivation of viruses in pig slurries: A review. Bioresource Technology. Vol. 61. Issue 1, July 1997, Pр. 9-20. DOI: https://doi.org/ 10.1016/S0960-8524(97)84693-7.

12. Dong L., Cao G., Guo X. et al. Efficient biogas production from cattle manure in a plug flow reactor: A large scale long termstudy.Bioresource Technology. 2019.Vol.278.Pp.450-455. DOI: https://doi.org/10.1016/j.biortech.2019.01.100

13. Azevedo A., Fornasier F., Silva M. et al. Life cycle assessment of bioethanol production from cattle manure. Journal of Cleaner Production. Vol. 162. 20 September 2017, Pр. 1021-1030. DOI: https://doi.org/10.1016/j.jclepro.2017.06.141

14. Yuan X.,He T., Cao H. et al. Cattle manure pyrolysis process: Kinetic and thermodynamic analysis with isoconversional methods. Renewable Energy. Vol. 107. July 2017. Pp. 489-496. DOI: https://doi.org/10.1016/j.renene.2017.02.026

15. Vancov T., Schneider R.C.S., Palmer J. et al. Potential use of feedlot cattle manure for bioethanol production. Bioresource Technology. Vol. 183, May 2015. Pp. 120-128. DOI: https://doi.org/10.1016/j.biortech.2015.02.027

16. Тимонин А.С., Божко Г.В., Борщев В.Я. [и др.]. Машины и аппараты химических производств и нефтегазопереработки. Калуга: Изд-во «Ноосфера», 2017. 948 с.

17. Микрофильтрационные мембраны типа МФАС-М. Режим доступа: http://www.vladipor.ru/catalog/&cid=001 (дата обращения 24.02.2019).


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For citations:


Novikov A.E., Shevchenko V.A., Filimonov M.I. MODELING PROCESSES OF CENTRIFUGAL SEPARATION AND ULTRAFILTRATION OF WASTEWATER ON LIVESTOCK FARMS. Agricultural Engineering (Moscow). 2019;(3):27-35. (In Russ.) https://doi.org/10.34677/1728-7936-2019-3-27-35

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