Phytoremediation

Phytoremediation: Green Technology for the Future Phytoremediation is the process by which plants and trees are used to remove or stabilize hazardous pollutants that exist in soil, sediments, surface water or groundwater. The EPA (environmental protection agency) estimates that more than 30,000 sites in the U.S. are in need of environmental treatment, and a great number of these sites are contaminated with highly toxic metals. Abandoned or under-used commercial and industrial facilities, termed

This includes Typha angustifolia, Convolvulus arvensis, Brassica juncea, Helianthus annuus, Nicotiana tabacum and Prosopis sp [10-18].10-18) Poplars are among the tree species have been tested and promoted for phytoremediation [19-22].19-22) Many of these species are capable of sequestering high amount of Cr from the soil, however, have least or no economic value. On the other hand, tree species have a long growing period and not suitable for agricultural crop field

chemical reaction and microbiological activities and most importantly the bioavailability of metal ions. In this situation, a successful phytoremediation program must be considered as an alternative in the specific site. In the past lots of researchers have tried different method in order to mitigate or reclaim the heavy metals polluted soils, but so far phytoremediation is the best of all because it is

Introduction Beside the natural activities, almost all human activities also have potential contribution to Arsenic contamination in the environment as side effects occurs in many parts of the world and is a global problem. In many areas As level has crossed the safe threshold level. Large-scale groundwater pollution by geogenic arsenic (As) in West-Bengal and Bangladesh has recently promoted this element into an environmental pollutant of prime concern. Epidemiological studies have documented various

Phytoremediation: Using Plants To Combat a Stressed Environment Plants have long been adapting the traits necessary to survive in a wide variety of stressful environments – including areas of high salinity, extreme heat, drought, and freezing temperatures - but now, using genetic modification, scientists have been able to expand the role that plants play in the environment. With the advent of transgenic biotechnology, plants can be enhanced with qualities that not only allow them to flourish

Phytoremediation of Urban Brownfields: A Case for Industrial Hemp By: Jeff Lemon Thursday, June 21, 2012 Brownfields Brownfield Phytoremediation Page 2 Page 4 A Case for Industrial Hemp? Page 5 Executive Summary There are a number of reasons why we should care about brownfields. From encouraging urban sprawl through the ‘development’ of greenfields to their environmental impacts on soil, air and ground water, these properties are a drain upon the urban environment. Redevelopment

2012). The phytoremediation approach has several advantages including decreased expense, public acceptance and in particular the capacity of simultaneous evacuation of organic and inorganic contaminants. Phytoremediation might additionally be utilized as a last cleaning venture in combination with other microorganism driven treatment technologies, a technique called microbe-assisted phytoremediation. Regardless of its positive aspects, the commercial application of phytoremediation is slow. According

coupled with global industrialisation has placed huge stresses on the environment, affecting sustainability and causing buildups of organic and inorganic contaminants throughout the biosphere, most notably in the rhizosphere (Ward & Singh, 2004). Phytoremediation coming from the Greek word phyto, meaning “plant” and the latin remediare, meaning “to remedy” is a term first coined by Dr. Ilya Raskin in 1991 terming the use of vascular plants, fungi and algae in either the control of waste, the encouragement

ROLE OF THE PHYTOREMEDIATION IN SALINITY: As salinity dismisses the environment and cause an adverse effect in the environment is the Subject to concern and still in need for remediation and at present this challenges remains stable in the environment. There are various

Researches involving the use of association between legumes and PGPBs (Plant Growth Promoting Bacteria) in heavy metals phytoremediation process were mainly performed for soils highly contaminated. However, even in agriculture soils, with moderate or low contamination levels, plants can accumulate high rates of heavy metals. So, food chain contamination by these metals presents a real thread to animal and human health. This work aimed to evaluate the use of two legumes/PGPBs symbiosis; Vicia faba