Номер части:
Журнал
ISSN: 2411-6467 (Print)
ISSN: 2413-9335 (Online)
Статьи, опубликованные в журнале, представляется читателям на условиях свободной лицензии CC BY-ND

DEVELOPMENT OF A NEW TECHNIQUE TO TREAT MUNICIPAL WASTE LANDFILL LEACHATE WITH LOW PRESSURE REVERSE OSMOSIS AND NANOFILTRATION MEMBRANES (11-19)



Науки и перечень статей вошедших в журнал:
DOI:
Дата публикации статьи в журнале: 2020/06/14
Название журнала: Евразийский Союз Ученых, Выпуск: 74, Том: 4, Страницы в выпуске: 11-19
Автор: Tatiana Shirkova
Russia, Moscow, Yaroslavskoye Shosse, 26 , Moscow State University of Civil Engineering (National Research University) ,
Автор: Alexei Pervov
Russia, Moscow, Yaroslavskoye Shosse, 26 , Moscow State University of Civil Engineering (National Research University) ,
Автор: Maria Kiryushina
Russia, Moscow, Yaroslavskoye Shosse, 26 , Moscow State University of Civil Engineering (National Research University) ,
Анотация: Two different approaches to treat municipal landfill leachate with reverse osmosis membranes are evaluated and discussed. Investigations are aimed at production of quality water that could be used for industrial use or meet regulations for surface water sources discharge. Also possibilities are evaluated to radically reduce concentrate flow by a value that does not exceed 0.5-1 per cent of initial feed water flow to withdraw all rejected impurities together with dewatered sludge. Experimental research is conducted to develop membrane operational modes during leachate treatment. Experimental procedure is developed and described to evaluate reduction of membrane flux and rejection during leachate treatment and recovery increase. Results of experimental investigations are presented that enable us to determine main characteristics of membrane process such as: membrane flux, ammonia rejection, membrane types, number of stages, recovery. Experimental relationships are obtained that enable us to determine the required membrane recovery values that correspond to ammonia concentration in the feed water to meet required regulation values in the product water. The developed tools to evaluate the required membrane area and required amount of membrane modules (required membrane area) are developed and described. Influence of organics defined as COD (chemical oxygen demand) on membrane performance is investigated. Optimum values of the working pressure are evaluated as well as other economic parameters are determined. Main tools to handle concentrate flow of membrane unit, to withdraw it with dewatered sludge as well as methods to utilize sludge and concentrate are also discussed.
Ключевые слова: landfill leachates treatment   reverse osmosis   recovery increase   rejection of reverse osmosis membranes   influence of dissolved organics on membrane performance   sludge dewatering              
Данные для цитирования: Tatiana Shirkova Alexei Pervov Maria Kiryushina . DEVELOPMENT OF A NEW TECHNIQUE TO TREAT MUNICIPAL WASTE LANDFILL LEACHATE WITH LOW PRESSURE REVERSE OSMOSIS AND NANOFILTRATION MEMBRANES (11-19) // Евразийский Союз Ученых. Технические науки. 2020/06/14; 74(4):11-19.

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