Nano Membrane Filtration Technology for sewage treatment

Nano Filtration (NF) Technology for Sewage Treatment

There are two classes of membrane process used in the water and wastewater field. The first category includes reverse osmosis (RO) and nanofiltration (NF). 

Technology

There are two types of membrane filtration technology for water and wastewater treatment, namely ultrafiltration (UF) and microfiltration (MF). UF has pores of 0.01 – 0.02 μm, while MF for water treatment has pores of 0.04 – 0.10 μm. In wastewater applications, coarser MF pore sizes of 0.2 and 0.4 μm can be used, but the finer MF membranes for water duties are also suitable. 

MF removes common particles found in water including bacteria and other microbial organisms, while UF removes viruses in addition, thereby providing a physical disinfection barrier. For RO pre-treatment of wastewater, membrane filtration is normally used in combination with coagulation to control fouling, ensure operational stability and improve removals of dissolved organics.

Conclusions

• Wastewater treated by conventional activated sludge provides a suitable feed for membrane treatment

• The wastewater reuse market is growing rapidly, and provides an opportunity with excellent business potential for membrane filtration

• For wastewater reuse, UF/MF membrane pre-treatment is essential for low cost RO

• The energy cost and Total Water Cost for wastewater reuse is significantly below that of seawater desalination

• MBR – RO has higher energy costs than conventional wastewater treatment followed by UF/MF – RO

• Membrane filtration case studies in wastewater reuse have provided good experience for the water Industry.

 Source of article: http://www.waterworld.com/articles/wwi/print/volume-25/issue-5/regional-spotlight/north-american-caribbean/membrane-filtration-for-wastewater-reuse-current.html

Its very simple.
1)First backup all your data to your computer using NOKIA PC SUIT.
2)Just remove the SIM CARD and the MEMORY CARD.
3)Go to menu-tools--settings---general---factory setting.
4)You are done. Your phone will re start with original factory settings..
5)Use NOKIA PC SUIT to restore all data again to your NOKIA E63.

http://ezmeans.com/2012/11/10/nokia-e63-memory-full-4-effective-solutions/

Nokia E63 Memory Full – 4 Effective Solutions

If you’ve been using Nokia E63 for more than a year, you are likely to get repeated annoying notification that “the memory is full. Delete some data to send and receive messages”. Though you delete all messages, the problem does not seem to get resolved. This is very annoying because you can not do some basic operations like receiving and sending messages, with this problem on.  Here are a few things that you can do to get rid of this problem once and for all. 

1. Backup phone memory to memory card -
This is my number 1 method of solving this issue. Go to Menu – Tools – Memory. Click on options and click on “Back up phone memory”. This will backup everything onto your memory card. This has been solving my issues for many a times.  

2. Clear Cache of the internet –Click on the internet button that you can see on the default screen. (Let it load the internet page)
Click on options, scroll down , click on “clear privacy data” select all. Click Yes. This will clear all privacy data and unload the phone and give a lot of memory.

3. Remove unwanted Apps –Chances are that you are have downloaded a few apps that are not useful to you anymore. Go to app manager and delete them.

4. Store most of the things in memory card – Store all your videos, audio files, active notes etc in Memory card rather than on your phone.
To store all active notes in memory card – Click on active notes – options – settings. First in the menu is memory in use. If it is showing ‘phone memory’ then change it to ‘memory card’.