Hexavalent Chronium removal from wastewater: AVS-100 unit application

Wastewater which contains chromium and other heavy metals is classified as high toxic wastewater. For this type of wastewater is required qualitative and effective treatment.
There are different chromium removal methods such as chemical precipitation, adsorption and biosorption, reverse osmosis, ion exchange, electrodialysis, photo-catalysis. We offer to use breakthrough technology – electromagnetic vortex layer with rotating ferromagnetic particles (AVS-100 or Intensifier of Technological Process).
As we already noted in our previous articles, offered method is very effective and allows reduce reagent consumption in 1.5-2 times, reduce energy consumption is 2 times and decrease working area of treatment facilities in 10-15%.

You can see the wastewater neutralization results on our website www.fuelcleaning.globecore.com

On the basis of performed investigations and production experiments of AVS application for wastewater treatment, we offered and implemented manufacturing schemes of wastewater treatment on different treatment facilities.
On the figure 1 is shown the diagram of simultaneous treatment of chromium-containing and acid-base wastewater.

According to this diagram, sewage from shopfloors is alternately entering into two mixing cylinders. When the first of these cylinders is filled by sewage and this sewage is neutralized, to cylinder is fed the acid (in order to acidize the sewage to 2-3 pH level) and is fed reducing agent (sodium bisulfite). After 5-10 minutes mixing this sewage is fed into AVS unit. (Before adding the sewage into AVS, this sewage was filled by Na2CO3 to obtain the value of pH level at elevation 7,5-9). During couple seconds of processing in AVS unit can be achieved complete and effective wastewater treatment by reagents. During this time is completed restoration of Cr6+ to Cr3+ and formation of Cr3+ hydroxide and other heavy metals. As reducing agent can be used FeSO4 (ferrous sulfate).
In this case chromium restoration can be provided in each of acid and base medium. The wastewater with metal hydroxides (after processing in AVS unit) enters the settling tank for defecation and then – the sewerage or the water recycling (to the shopfloors for engineering purpose). The sludge from settling tank is dewatered by vacuum filters. Application of AVS unit allows obtaining the quality of treatment lower than maximum permissible concentration, reduce reagent consumption in 1,5-2 times, reduce energy consumption in 2 times and decrease working area of treatment facilities in 10-15%.

To find out more, please visit our website www.fuelcleaning.globecore.com

We are a larger manufacturer of oil processing equipment in Eastern Europe. Established in 2003, PC GlobeCore created quite large product range.
Our product range includes Fuel cleaning systems, oil regeneration systems, oil purification plants, used oil purifiers, oil recycling plants, transformer oil purification machines, gas condensate cleaning equipment, vacuum oil purification plants, multi-section mobile oil units, vacuum cold trap systems for transformer maintenance, sorbent regeneration and preparation units, zeolite regeneration units, oil filling units, wastewater treatment machines, intensifiers of technological processes and others.
All our products are manufactured from completely European accessories. The equipment is in compliance with all relevant international standards. All products certified accordingly. Quality control complies with ISO 9001:2001. Certificate No UA.2.039.02021-06.
With hundreds of companies all around the world using GlobeCore regeneration equipment – you can be assured that we will serve your needs and make sure you become a happy customer.