ZLD-DipeshEngineering

8/3/2019 ZLD-DipeshEngineering

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Vignesh Iyer

From: Jinal Doshi [[email protected]]Sent: Thursday, July 01, 2010 1:00 PMTo: [email protected]: RE: RFQ for Evaporator

Importance: High

Follow Up Flag: Follow upFlag Status: Flagged

Dear Sir,

Pleasefindbelowthequestionnaire raisedbyourpartnerforsubmitting an offer respectively determining thetechnically best concept for you.

1. The capacity of 5000 m/day indicated by you corresponds 208 m/h is very high and requires a verybig plant which we estimate setting up as turn-key in Germany with about 25 to 30 Euro million.

Naturally the plant would be cheaper in the case of parts from India however there is still a very highinvestment sum and we kindly ask you to determine if the building is worthwhile for the customer.

2. Does this matter concern an environment protection plant i. e. shall already existing wastewater beevaporated from a plant or does it concern a completely new project at which already the pre-plant

has to be build?

3. It would be possible to operate the plant with a multi-stage operation at which e. g. the steamconsumption at a total evaporation and use of a 5-stage plant would be between 45 - 50 tons.

Alternatively it would be also possible to use a turbo compression evaporation plant for evaporation

which instead of the steam consumption an electrical energy consumption for the mechanical vapour

compressor of about 8.000 - 8.500 KW results. Can the customer provide this quantity respectively

makes it sense to build a plant at such high energy consumptions?

4. The solution basically consists of chloride, sodium and sulphates. That means that the plan mostlyconsists of sodium sulphate respectively sodium chloride. Shall these salts be separated or shall the

solution only be concentrated up to a certain degree?

5. It would presumably be possible to separate the salts sodium chloride and sodium sulphate mostlyfrom the plant at corresponding additional costs and produce a saleable product. Is such a solution

required?

6. Can the plant be operated with elutriation (provided that salt shall be separated) or are there anylimitations? If sodium sulphate and sodium chloride shall be produced separately at this process the

other solids would remain in solution.7. The existing calcium will possibly be a problem at high concentration because it may be exist as

calcium sulphate and due to the low solubility of the corresponding concentration it precipitate at the

heating surfaces and it is difficult to remove it in the plant. Would it maybe imaginable to precipitate

the calcium by a pre-treatment to avoid problems with gypsum crust at the heaters?

Looking forward to your valued reply at the earliest.

Revert back if any queries.

Thanks & Regards,


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Ms. Jinal R. Doshi

ForDipesh Engineering Works,3 , Sheroo Villa,

1st Floor, 87, J.P.Road ,

Above Corporation Bank,

Near Andheri Sports Complex,

Andheri ( West ),

Mumbai - 400053 ( INDIA )

Tel :- 022 - 2674 3719 / 29

Fax :- 022 - 2674 3507

Please do not print this email unless it is absolutely necessary. Spread environmental awareness.From: jinal [mailto:[email protected]]Sent: 24-06-2010 1:33 PMTo: '[email protected]'Subject: RE: RFQ for EvaporatorImportance: High

Dear Sir,

We regret for the delay in response & acknowledge with the thanks receipt on your valued enquiry.

Further to the same kindly provide us the process details and operating design temperature & pressure for

further understanding.

The date specified below is short for us to understand the complete specific requirement.

Hence request you to do the needful.

Thanks & Regards,

Ms. Jinal R. Doshi

ForDipesh Engineering Works,3 , Sheroo Villa,

1st Floor, 87, J.P.Road ,

Above Corporation Bank,

Near Andheri Sports Complex,Andheri ( West ),

Mumbai - 400053 ( INDIA )

Tel :- 022 - 2674 3719 / 29

Fax :- 022 - 2674 3507

Please do not print this email unless it is absolutely necessary. Spread environmental awareness.From: Sales Dipesh Engg [mailto:[email protected]]Sent: 19-06-2010 1:30 PMTo: [email protected]

Subject: FW: RFQ for Evaporator


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From: Vignesh.Iyer [mailto:[email protected]]Sent: Saturday, June 19, 2010 4:03 AMTo: [email protected]: RFQ for Evaporator

SalesManager,DIPESHENGGWORKSDearSir,WeareawatertreatmentcompanyinMiddleEastandarebiddingforaR.O.plantinQatarwhichalsoconsistsofZLDandweinviteyourquotationforEvaporatorforBrinetreatmentapplication toachieveZLD.

Quantity :1no.Capacityofeachstream:5,000m3/dayMaterial :Suitable

Feedwatersource:R.O.plantrejectbrinewaterSp.Gravity :1.03Analysisasbelow:

SrNo. Analysis Unit Value

1 Temperature Deg C 15 - 40 deg C

2 pH - 7.5 to 8.0

3 Conductivity s/cm 35,0004 Total Dissolved Solids mg/l 20,000

5 Calcium as Ca mg/l 85

6 Magnesium as Mg mg/l 2107 Chloride mg/l 5450

8 Sodium as Na mg/l 6567

9 Sulfate mg/l 6416

10 T Alkalinity mg/l 1200

11 Nitrate mg/l 4.5

12 Sodium mg/l 6600

13 CO2 mg/l 17

Treatedwaterquality:Zerodischarge,mostminimumliquidcontentaspossibleTrusttheaboveinfoissufficient.Requesttorevertforanyfurtherclarification.BestRegards,VigneshIyerSeniorSalesExecutivePlantsMETITO(OVERSEAS)QATARWLL|P.O.Box23616,Doha,Qatar|Tel:+9744568650|Mob:+9745836596Fax:+9744568750|Email:[email protected]|http://www.metito.com

ZLD-DipeshEngineering

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