2021-May-18 03:36
2021-April-14  12:48

Iranian Knowledge-Based Firm Develops Device to Purify Water from Oil Derivatives

TEHRAN (FNA)- A knowledge-based company in Iran has developed a device for filtering water mixed with oil derivatives, using a special type of nano-membrane that can completely treat wastewater.

“The knowledge-based company, in cooperation with two other researchers, has managed to design a method that uses nano-membranes to separate oil derivatives from water,” Mehdi Etemadi, the CEO of the knowledge-based company and a PhD graduate from Ferdowsi University, told FNA on Wednesday.

“The membranes have been engineered with a property to act selectively by means of nanotechnology to filter specific materials smartly; the membranes can choose not to allow water pass through, but oil derivatives and hydrocarbons can pass through them; this feature separates 100% of the effluent from petroleum products,” he added.

Etemadi explained that the membranes can widely be used in case of water pollution by oil tankers at sea, adding that the product has no foreign samples and has been made in Iran for the first time.

In a relevant development in 2018, Iranian researchers at Kermanshah oil refinery could produce different types of catalysts to be injected into the petroleum sludge, making the country as the only producer of the product in the world.

Petroleum sludge is a complex mixture containing different quantities of waste oil, waste water, sand and mineral matter. 

Petroleum industries are responsible for the generation of large quantities of sludge, which is a major source of environmental pollution.

Injection of the low-price catalysts, produced in Kermanshah refinery in Western Iran, into the petroleum sludge decreases the environmental pollution, turns oil wastes into valuable products and reduces the time needed for building installations and implementing projects.

Oil sludge, an inevitable by-product, is generated wherever exploitation, transportation and refining occurs in petroleum industry. It is a complex mixture of petroleum hydrocarbons and water with solid mineral admixture.

Both the oil field sludge and the oil tank sludge comprise abundant of toxic substances from the most carcinogenic polycyclic aromatic to heavy metal, and even to radioactive material. Most of them pose the potential risks for human health and the environment.