You can search for the chemical composition of different plants that can bind certain pollutants.

Dear Elham, the coice of plants for phytomining strongly depends on the soil caracteristics and on what you want to (phyto)extract. Take a look for example at Phytomining for nickel, thallium and gold (Anderson et al, 1999) or this new review Phytomining of gold: A review (Shoran and Sheoran, 2013). Good luck

Am working on potentiality of willow clones in phytoremediation  willow spicies are best for phytoremdiation .

Hi Elham,

Please check out USDA website :[ http://www.ars.usda.gov/is/ar/archive/jun00/soil0600.htm ] [Phytoremediation: Using Plants To Clean Up Soils] for this interesting topic.

One example:

"A typical plant may accumulate about 100 parts per million (ppm) zinc and 1 ppm cadmium. Thlaspi (see picture attached, from the website) can accumulate up to 30,000 ppm zinc and 1,500 ppm cadmium in its shoots, while exhibiting few or no toxicity symptoms" ; "A normal plant can be poisoned with as little as 1,000 ppm of zinc or 20 to 50 ppm of cadmium in its shoots."

Phytomining could be used to extract metals from tailings areas that contain concentrations at a level uneconomic for conventional extraction techniques but this depend on soil properties and the metals you want to extract from soil there is several plants for that purpose lie thalspi alysium

Thanks for all the answers. I want to know if you aware of using these plants in industry.

Best species is Pteris vitata a fern that has good capability of phytomining

Hyperaccumulator Sebertia acuminata is commercially used for Ni Phytomining and it can produce sap with up to 25% Ni by weight. But be clear that phytomining experiments at pilot scale have been conducted in USA and UK by using some allysum species. Even tobacco has been reported to extract Gold at small scale.

still long way to go to extract gold and other precious metals by using plants.

Hi Elham,

Recently I had a chance to communicate with Dr. Rufus Chaney. He is an expert working in the field of phytomining at USDA. He has just attended an 'Phytomingng Workshop' in Australia this July. He mentioned a handful companies have licensed the technology of using Hyperaccumulator Alyssum species for Ni. I attached his 2014 Conference paper for your reference. Please see page 10, the paragraph "PHYTOMINING OF NI AS A COMMERCIAL TECHNOLOGY".

Hi Elham, Leon Kochian and Abid Ali Ansari are key players in this science.

Also this paper provides some facts and figures for you;

Evolutionary aspects of elemental hyperaccumulation

According to our university research salix schwerinii, myrsinifolia, karin, klara, dasyclados, viminalis is better.