КФУ. Карточка публикации. Parameters of Household Wastewater Treatment Using Composite Membranes with a Surface Layer of Cellulose Acetate//Membranes and membrane technologies

RUS

- EN
- 中文
- ES

PARAMETERS OF HOUSEHOLD WASTEWATER TREATMENT USING COMPOSITE MEMBRANES WITH A SURFACE LAYER OF CELLULOSE ACETATE//MEMBRANES AND MEMBRANE TECHNOLOGIES

Форма представления

Статьи в российских журналах и сборниках

Год публикации

2021

Язык

русский

Авторы, сотрудники КФУ

Маврин Геннадий Витальевич, автор

Фазуллин Динар Дильшатович, автор

Фазуллина Лейсан Ильдаровна, автор

Другие авторы

Шайхиев Ильдар Гильмановмч, автор

Авторы, студенты КФУ

Шумилова Екатерина Андреевна, автор

Библиографическое описание на языке оригинала

Fazullin D.D.; Mavrin G.V; Dryakhlov V.O.; Fazullina L.I; Shaikhiev I.G.; Golovnina E.A./ Parameters of Household Wastewater Treatment Using Composite Membranes with a Surface Layer of Cellulose Acetate//Membranes and membrane technologies.– 2021.-T.3.- N6. – P419-425

Аннотация

Composite membranes based on nylon and cellulose acetate (CA) are synthesized by immersing a microporous nylon substrate into a 3% CA solution in acetone. The CA content in the membrane is 12–53% depending on the number of deposited surface layers. The results of studying the properties of the composite membranes show that the water uptake and total porosity of the membranes decrease with an increase in the number of CA layers; this finding is attributed to the compaction of the membrane structure. In addition, it is revealed that the contact angle of the membrane increases by 6.4?; this means that the hydrophilic properties of the membrane decrease. The deposition of the surface layer of CA leads to the smoothing of the porous and rough surface of the nylon membrane base and a decrease in the porosity. Tests on household wastewater treatment using a nylon–CA3 composite nanofiltration membrane are conducted. It is found that the specific flux of the nylon–CA3 membrane with respect to wastewater is 39.7 dm3/(m2 h) at a pressure of 0.7 MPa. According to the results of the study, it is determined that the average degree of purification using the nylon–CA3 membrane is 64.5%. The nylon–CA3 membrane exhibits a high selectivity for multivalent ions (70%) and a high degree of purification in terms of COD and BOD5 (~92%), which is not inferior to the characteristics of a commercial nanofiltration membrane.

Ключевые слова

nanofiltration, composite membrane, cellulose acetate, wastewater treatment

Название журнала

MEMBRANES AND MEMBRANE TECHNOLOGIES

URL

https://www.pleiades.online/cgi-perl/search.pl?type=abstract&name=mmtech&number=6&year=21&page=419

Пожалуйста, используйте этот идентификатор, чтобы цитировать или ссылаться на эту карточку

https://repository.kpfu.ru/?p_id=261454

Полная запись метаданных

Поле DC	Значение	Язык
dc.contributor.author	Маврин Геннадий Витальевич	ru_RU
dc.contributor.author	Фазуллин Динар Дильшатович	ru_RU
dc.contributor.author	Фазуллина Лейсан Ильдаровна	ru_RU
dc.contributor.author	Шайхиев Ильдар Гильмановмч	ru_RU
dc.contributor.author	Шумилова Екатерина Андреевна	ru_RU
dc.date.accessioned	2021-01-01T00:00:00Z	ru_RU
dc.date.available	2021-01-01T00:00:00Z	ru_RU
dc.date.issued	2021	ru_RU
dc.identifier.citation	Fazullin D.D.; Mavrin G.V; Dryakhlov V.O.; Fazullina L.I; Shaikhiev I.G.; Golovnina E.A./ Parameters of Household Wastewater Treatment Using Composite Membranes with a Surface Layer of Cellulose Acetate//Membranes and membrane technologies.– 2021.-T.3.- N6. – P419-425	ru_RU
dc.identifier.uri	https://repository.kpfu.ru/?p_id=261454	ru_RU
dc.description.abstract	MEMBRANES AND MEMBRANE TECHNOLOGIES	ru_RU
dc.description.abstract	Composite membranes based on nylon and cellulose acetate (CA) are synthesized by immersing a microporous nylon substrate into a 3% CA solution in acetone. The CA content in the membrane is 12–53% depending on the number of deposited surface layers. The results of studying the properties of the composite membranes show that the water uptake and total porosity of the membranes decrease with an increase in the number of CA layers; this finding is attributed to the compaction of the membrane structure. In addition, it is revealed that the contact angle of the membrane increases by 6.4?; this means that the hydrophilic properties of the membrane decrease. The deposition of the surface layer of CA leads to the smoothing of the porous and rough surface of the nylon membrane base and a decrease in the porosity. Tests on household wastewater treatment using a nylon–CA3 composite nanofiltration membrane are conducted. It is found that the specific flux of the nylon–CA3 membrane with respect to wastewater is 39.7 dm3/(m2 h) at a pressure of 0.7 MPa. According to the results of the study, it is determined that the average degree of purification using the nylon–CA3 membrane is 64.5%. The nylon–CA3 membrane exhibits a high selectivity for multivalent ions (70%) and a high degree of purification in terms of COD and BOD5 (~92%), which is not inferior to the characteristics of a commercial nanofiltration membrane.	ru_RU
dc.language.iso	ru	ru_RU
dc.subject	nanofiltration	ru_RU
dc.subject	composite membrane	ru_RU
dc.subject	cellulose acetate	ru_RU
dc.subject	wastewater treatment	ru_RU
dc.title	Parameters of Household Wastewater Treatment Using Composite Membranes with a Surface Layer of Cellulose Acetate//Membranes and membrane technologies	ru_RU
dc.type	Статьи в российских журналах и сборниках	ru_RU