Friday, September 22, 2017

Chlorine ~ Kloru

Kloru 'Chlorine/Kaporit' nia prezensa iha Tratamentu be'e ho sistema RO sei fo disvantajen no mos bele estraga membrana RO iha tempu badak nia laran bainhira operador lafo'o atensaun hodi kontrola ninia konsentrasaun. Nune'e sei rezulta Kondutividade ~ CONDUCTIVITY - TDS sae a'as, fluxu permeate no rejeta RO menus, parametru  husi Be'e Alimentasaun "Feed Water" inisiu lahanesan ho agora no nia presaun amenta a'as no hatun fluxu rejeta masin. Liu tan ida ne'e bele rezulta truka membrana no paradu 'downtime'
Simptoma liu ba laos kauza deit husi Kloru maibe bele mos husi aspeitu seluk, tan ne'e presiza identifika didiak.

Se kloru  nia prezensa iha be'e alimentasaun 'feed water', pra'atika komum neutraliza'a ho solusaun sulfitu sodiu ou leitu karbonu, maibe label produsaun mak diferensa hanesan esplika ona iha artikel liu ba konaba Sodiu hipokloritu / Sodium hypochlorite no Haketak ou hasai Kloru husi RO (CHLORINE REMOVER) ,

posibilidade ida mak operador haluha bebeik ou ladun tau atensaun katak rezultadu analiza kloru ne'e eru. Valor konsentrasaun  kloru ida ekilibriu presiza rezultadu ida lolos kobre husi be'e alimentasaun ho nia limite 0.2-0.5, permeate trace no rejeta tenser hanesan ho rezultadu analiza be'e alimentasaun, nune bele fasil identifika neutraliza'a kloru. Jeralmente kloru analiza ho parametru DPD [N, DPD (N, N-diethyl-p-phenylenediamine)]. Teste DPD kloru iha deteksaun limitadu ho nia range / Varia tipikamente entre 0.02 - 2.00 ppm no 0.1-10 ppm, bainhira valor rezultadu liu husi Instrumentu teste nia kapasidade, uza metodu mistura 1:3 ou 1:4. 

Procedimentu DR900 Programa 80 Chlorine F&T PP 0.02 to 2.00 mg/L Cl2:
1. Start program 80 Chlorine F&T PP. For information about  sample cells, adapters or light shields, refer to Instrument-specific information on page 1. Note: Although the program name may vary between instruments, the program number does not change.
2. Prepare the blank: Fill the sample cell with 10 mL of sample. 
3. Clean the prepared sample. 
4. Insert the blank into the cell holder.
5. Push ZERO. The display shows 0.00 mg/L.
6. Prepare the sample: Fill a second sample cell with 10 mL of sample. 
7. Add the contents of one powder pillow to the sample cell. 
8. Swirl the sample cell for 20 seconds to mix. A pink color will develop if chlorine is present. Proceed to the next step immediately.
9. Clean the prepared sample.
11. Push READ. Results show in mg/L Cl2.


Konteudu seluk tan hare'e iha pajina Analiza Be'e


Reff:
http://www.waterworld.com/articles/mem/articles/print/volume-2/issue-1/feature/avoiding-testing-errors-protecting-ro-membranes-from-chlorine-damage.html

0 comments:

Post a Comment