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دانلود کتاب Controlling Biofouling in Seawater Reverse Osmosis Membrane Systems
دانلود کتاب کنترل رسوب زیستی در سیستم های غشایی اسمز معکوس آب دریا
مشخصات کتاب
Controlling Biofouling in Seawater Reverse Osmosis Membrane Systems
ویرایش: [First edition]
نویسندگان: Nirajan Dhakal
سری:
ISBN (شابک) : 0815357184, 1351056093
ناشر: CRC Press
سال نشر: 2018
تعداد صفحات: 224
[225]
زبان: English
فرمت فایل : PDF (درصورت درخواست کاربر به PDF، EPUB یا AZW3 تبدیل می شود)
حجم فایل: 7 Mb
قیمت کتاب (تومان) : 37,000
در صورت تبدیل فایل کتاب Controlling Biofouling in Seawater Reverse Osmosis Membrane Systems به فرمت های PDF، EPUB، AZW3، MOBI و یا DJVU می توانید به پشتیبان اطلاع دهید تا فایل مورد نظر را تبدیل نمایند.
توجه داشته باشید کتاب کنترل رسوب زیستی در سیستم های غشایی اسمز معکوس آب دریا نسخه زبان اصلی می باشد و کتاب ترجمه شده به فارسی نمی باشد. وبسایت اینترنشنال لایبرری ارائه دهنده کتاب های زبان اصلی می باشد و هیچ گونه کتاب ترجمه شده یا نوشته شده به فارسی را ارائه نمی دهد.
توضیحاتی در مورد کتاب کنترل رسوب زیستی در سیستم های غشایی اسمز معکوس آب دریا
توضیحاتی درمورد کتاب به خارجی
Seawater desalination is a rapidly growing coastal industry
that is increasingly threatened by algal blooms. Depending on
the severity of algal blooms, desalination systems may be
forced to shut down because of clogging and/or poor feed
water quality. To maintain stable operation and provide good
feed water quality to seawater reverse osmosis (SWRO)
systems, ultrafiltration (UF) pre-treatment is
proposed.
This research focused on assessing the ability of UF and
other pre-treatment technologies to reduce biofouling in SWRO
systems. An improved method to measure bacterial
regrowth potential (BRP) was developed and applied at
laboratory, pilot and full scale to assess the ability of
conventional UF (150 kDa) and tight UF (10 kDa) alone and in
combination with a phosphate adsorbent to reduce regrowth
potential and delay the onset of biofouling in SWRO.
The improved bacterial regrowth potential method employs a
natural consortium of marine bacteria as inoculum and flow
cytometry. The limit of detection of the BRP method was
lowered to 43,000 ± 12,000 cells/mL, which is equivalent to
9.3 ± 2.6 µg-Cglucose/L.
The reduction in bacterial regrowth potential after tight UF
(10 kDa) was 3 to 4 times higher than with conventional UF
(150 kDa). It was further reduced after the application of a
phosphate adsorbent, independent of pore size of the UF
membrane. Pilot studies demonstrated that the application of
tight UF (10 kDa) coupled with a phosphate adsorbent
consistently lowered the bacterial regrowth potential and no
feed channel pressure drop increase was observed in membrane
fouling simulators (MFS) over a period of 21 days. The study
also showed that non-backwashable fouling of UF membranes
varied strongly with the type of algal species and the algal
organic matter (AOM) they release. The presence of
polysaccharide (stretching -OH) and sugar ester groups
(stretching S=O) was the main cause of non-backwashable
fouling.
In conclusion, this study showed that an improved BRP method
is suitable for the assessment of SWRO pre-treatment systems
and it can be a useful tool to develop potential strategies
to mitigate biofouling and improve the sustainability of SWRO
systems.
