Seeking help for two types of wastewater treatment
Thread Content
The company has chromium-plating wastewater (containing chloride ions, chromium ions, and being acidic) as well as fluorescent dye wastewater (from workpiece inspection), which needs to be treated due to regulatory requirements. The first type of wastewater amounts to 10 t/d, while the second type is 7 t/d. Is it possible to purchase an MVR system for treatment? I asked about investing using traditional methods – do they require a large amount of land?
So I was wondering if it’s possible to do it? If possible, we’ll find a manufacturer and give it a try.
Firstly, the former type refers to electroplating wastewater. The existing treatment methods involve using limestone for precipitation; these methods require large amounts of chemicals, result in wastewater that does not meet the required standards, generate a large amount of sludge, and incur high costs associated with handling hazardous waste. We have a pressure-reduced evaporation drying technology that enables the wastewater to meet discharge standards. This technology requires much less space – only about one-tenth of that needed by MVR systems – and it provides stable treatment results. There are numerous cases of its use in China’s electroplating industry. It’s still the fluorescent wastewater you mentioned – it has a high acidity level and a high COD value. We have handled such projects for the military industry, and there are third-party test reports available. If you need them, please provide your email address and contact details so that we can send you the relevant documents
“We have a pressure-reduction evaporation drying technology whose treatment results meet the discharge standards; the equipment occupies very little space, only about one-tenth that of an MVR unit, and its performance is stable. What is the electricity consumption required to treat one ton of wastewater? What is the heat consumption?
Investing in an MVR is too costly; your small amount of wastewater isn’t worth it
I checked his information; it seems to be 0.23 yuan per liter of water
I am an MVR manufacturer, but I think that if the evaporation process is feasible, it would be better not to choose MVR depending on your water volume; multi-effect systems have lower investment costs and offer a better cost-performance ratio
Film-falling vacuum evaporation should work; after that, crystallization and drying allow the salt to be recovered. Distilled water can also be reused. The water used for testing should first be filtered, as it contains valuable fluorescent agents that are mostly insoluble in water and thus easy to recover.
What is the chromium ion concentration? And how much concentration are you planning to use? Be careful: the increase in boiling point is not economical, and the presence of chloride ions raises issues regarding the selection of materials for your equipment. It’s not economical.
I’ll calculate it for you using all the parameters: 1206538140@qq.com