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Berek YaBB Newbies Offline Water and Wastewater.com is the best! Posts: 1 Company or Organization: ****	Leather Industry Feb 18^th, 2005, 4:25pm I´d like some information about chemical technics to remove Sulfide from wastewater of leather industry. Are there any way to blend coagulants with oxidants agents to promove sulfide remotion???
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orenda Senior Member Offline WaterandWastewa ter.Com is the best! Posts: 320 AZ Gender: Company or Organization: Orenda Technologies, Inc.	Re: Leather Industry Reply #1 - Feb 18^th, 2005, 4:39pm Berek: We have an efficient and economical chemistry to react with, and remove, sulfides from waste water. If interested, please e-mail me at orendatech@earthlink.net, or call at 203-374-3520. Regards, Orenda
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grrun

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Re: Leather Industry
Reply #2 - Feb 18^th, 2005, 4:40pm

The more powerful oxidants may not remain stable with blending, but hydrogen peroxide could metered into the system separately with very little risk of interfering with further processing. The decomposition products are oxygen and water. However, concentrated H2O2 requires care in handling to prevent accidents. Since you have not provided any details about your process, this is the best suggestion that I can make at this time.

Sincerely, grrun Roll Eyes

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Brent_Cowan YaBB Newbies Offline Water and Wastewater.com is the best! Posts: 20 Company or Organization: CSC Technology, Inc.	Re: Leather Industry Reply #3 - Mar 2^nd, 2005, 2:30am I have a product that will instantly destroy sulfides and other sulfurous compounds in wastewater. Typically the stoichiometry is 2.5ppm product to 1ppm H2S. If you are interested, please contact me at your convenience. Brent Cowan 610-383-0909 csctechnology@comcast.net
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Wolfram.Scholz

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Re: Leather Industry
Reply #4 - Oct 23^rd, 2005, 3:32pm

Dear Berek,

Our company W2O Environment provides environmental support for the leather industry. We are based in Northampton, England and are specialised in tannery effluent treatment.
Large amounts of sulphides and hydrosulphides are used in the process of liming during leather processing. For that reason techniques for sulphide removal have to be applied by many wet-blue tanneries.
The most common technique is the complete segregation of the lime (or un-hairing liquors) including the following washes. The sulphide bearing part stream is than transferred to a sulphide oxidation system and treated in batch.
We developed a highly efficient sulphide oxidation which applies jetox aeration and a catalyst, which brings sulphide concentrations down to less than 5 ppm in 5-8 hours aeration time. After aeration the stream is usually transferred to the aerated balancing tank, where all effluents are combined. Sulphide oxidation is considered as BAT (best available technology) and is also recommended by the IPPC. This technology is economical feasible and does not imply further addition of highly expensive chemicals. I would like to offer you our support in the installation of a state of the art sulphide oxidation systems. We can provide for process design, equipment specs, HAZOP, commissioning and plant start up.

If you are interested in some more information please don t hesitate to contact us.
Best regards,
Dr Wolfram Scholz

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http://www.w2oenvironment.net

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