Solar Evaporation Pond

What is the pH of the effluent?

Also, 50% total dissolved solids sounds a lot. Is this figure correct?

Hello Guest,

What kind of effluent do you process, is it animal manure? The TDS sounds rather high.

Can you tell me which Country you are in please?

And do you run a full cycle effluent treatment as in the second site below?

I assume you can empty this pond before any mend is tried?

Take a look at these sites below:

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[PDF] MF1044 Wastewater Pond Design and Construction File Format: PDF/Adobe Acrobat - View Operation, maintenance, and repair needs for wastewater ... evaporation, and soil. Sewage enters the pond by a pipe below the surface but above the bottom, .... excess water must be connected to the effluent line following the tank. ...

www.oznet.ksu.edu/library/H20QL2/MF1044.PDF

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Dairy Shed Effluent - 8.0 Ponds and other technology for ...

During dry periods in summer when evaporation and evapotranspiration are high, ... For further treatment of anaerobic pond effluent, aerobic biological ...

www.maf.govt.nz/mafnet/rural-nz/...use/.../dairye10.htm

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I would also advise you to view the MAF site (Ministry of Agriculture and Fisheries), in addition perhaps to the one listed above.

Guest,

Saline effluent is likely to be corrosive. After clearing the old tank, take up usual patch up work with concrete and cement get it set. I remember in my old service company they used to give a final inner coating with BITUMIN and coal tar lining to avoid seepages. Hope you can try that and it is likely to be cheaper also.

Dumb question I guess.

What is the pond's construction? Are there earthen dikes around it? If so, does the earth material have a clay core? Does it have an existing liner? Or is it a tank?

The pH of the effluent is what it is and cannot be changed without a constant cost input. Repair of the pond is a one time capital outlay.

Hi to all,

does anybody know the relative amounts of residually dissolved salts (complete analysis down to trace elements) during evaporation?

RHABE

Hi RABHE,

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does anybody know the relative amounts of residually dissolved salts (complete analysis down to trace elements) during evaporation?

This depends entirely on the 'type' of 'stuff' is being dealt with. It may be farm excrement and or in a different part of the country it may have drug residues, chemicals, chalk, soil, and everything in between in any other district.

If you want to get the run down on your 'local' 'stuff', search under your local area for sewage treatment.

I could give you an answer, but it would be an 'average' only.

From there you should be able to get the info you ask for.

Take care.

Hi,

I was only thinking about the evaporation of seawater.

Sorry for not being complete with giving information.

RHABE

Hello RHABE,

Thank you for the reply post. Again it depends on the sea water you test. But I can give an average or one from a particular area.

This: http://www.undeerc.org/watman/FMRiver/PPTV/totaldissolvedsolids.asp

should help.

I do not know where you live and as you will see the TDS in sea-water vary.

Here is the search page:

Results: http://www.google.com/search?hl=en&client=safari&rls=en-gb&ei=BCqPSquLMpWQjAeC4rz0DQ&sa=X&oi=spell&resnum=0&ct=result&cd=1&q=total+dissolved+solids+in+seawater&spell=11

- 10 of about 93,700 for total dissolved solids

in seawater. (0.11 seconds)

Sponsored Links

Test My Water

1.Fill sample bottle provided.

2.Post to our Lab 3. Receive report

www.acornwater.co.uk

England

Search Results

Fact Sheet - Total Dissolved Solids (TDS)

Depending on the type of water, TDS can vary greatly from a few milligrams per liter to percent levels (tens of thousands of milligrams per liter). Seawater ...

www.undeerc.org/watman/FMRiver/.../totaldissolvedsolids.asp

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Desalination pre-treatment Seawater with a total dissolved solids content of around 35000 ppm is regarded standard seawater, because of its global abundance. ...

www.lenntech.com/desalination-pretreatment.htm

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[DOC] Total Dissolved Solids File Format: Microsoft Word - View as HTML See the Additional Information section of Test 12, Total Dissolved Solids, for further information about the Conductivity Probe.

faculty.ccri.edu/sgorelick/Test%2015%20Cl%20and%20Salinity.doc

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[PDF] What is the Fuss Over Total Dissolved Solids File Format: PDF/Adobe Acrobat - View Just look at the extreme: Even seawater pools, at 32000 ppm TDS or above, work just fine in all areas -chlorination. (including ORP control), filtration, ...

www.ppoa.org/.../ What%20is%20the%20Fuss%20Over%20Total%20Dissolved%20So...

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Why is the Ocean Salty? Oceanographers report salinity (total salt content) and the ... Salinity of sea water along the coastal areas of the conterminous United States varies .... Sodium and chloride constitute 85 percent of the dissolved solids in sea water ...

www.palomar.edu/oceanography/salty_ocean.htm

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Seawater Desalination CHAPTER ONE (The recommended California drinking water standard for maximum tds is 500 ... Assuming that concentrations of suspended solids in the seawater feed range ...

www.coastal.ca.gov/desalrpt/dchap1.html

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Seawater Desalination: GLOSSARY Total Dissolved Solids (tds). Total salt and calcium carbonate concentration in a sample ... Return to Seawater Desalination in California Table of Contents ...

www.coastal.ca.gov/desalrpt/dglossar.html

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Show more results from www.coastal.ca.gov Total suspended solids - Wikipedia, the free encyclopedia 24 May 2009 ... Total suspended solids is a water quality measurement usually abbreviated TSS. ... passed by a filter, usually called "Total dissolved solids" or TDS. ... (as certainly would be the case when measuring TSS in sea water), ...

en.wikipedia.org/wiki/Total_suspended_solids

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Correlation between Electrical Conductivity and Total Dissolved ... Keywords: Electrical Conductivity , Total Dissolved Solids , Sea Water , Fresh Water , Tender Coconut , Correlation ratio , coefficient of correlation ( r ...

myais.fsktm.um.edu.my/8244/

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Desalination : Comparative studies of the seawater corrosion ... The effects of seawater salinity (35, 000 and 55, 000 mg/l total dissolved solids), temperature (25°C and 45°C) and hydrodynamic conditions were examined. ...

linkinghub.elsevier.com/retrieve/pii/S0011916403004302

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by KSE Al-Malahy - 2003 - Cited by 7 - Related articles

Searches related to: total dissolved solids in seawater.

electrical conductivity. total dissolved solids. total dissolved solids salinity. total dissolved solids in drinking water' total dissolved solids ppm

Hope this helps. As you will see from the very first address I gave it gives TDS in the US. Which it explains vary a lot unless and before it is treated.

Take care and get back to me with other details if you need to.

Hi,

thank you for response - but not the topic I am interested in.

If you evaporate seawater ( a factor of 10 or so) then first gypsum then table-salt is precipitated.

(The remaining brine (or bittern?) is usually pumped back to the sea in the salines and sometimes used with different methods to extract Mg, J, Br, K, Li.)

If the brine is further evaporated then there will be other salts that precipitate: which material in which order. And most important: with which of the precipitates are co-precipitated the trace elements that are dissolved in the original seawater? or are these mostly precipitated together with the major constituents?

I did Google for hours but did find only interesting stuff about chemical extraction of valuable minerals.

Thank you for your interest

RHABE

Hi RHABE,

Thank you for your reply post.

Can you give me some idea for what reason you want to evaporate sea water? Unless you are going to use the salt, the other tiny amount of valuable minerals take a lot of finding!

Please explain more. Thank you.