BIOSTIMULATION

Introduction

∗ Biostimulation involves the modification of the environment to stimulate existing bacteria capable of bioremediation

∗ It is the form of in situ bioremediation which uses an electron donor or acceptor to encourage growth of bacteria capable of degrading environmental pollutants

Procedure

∗ Biostimulation can be done by addition of various forms of rate limiting nutrients and electron acceptors such as phosphorus, oxygen and so on

∗ Additives stimulate the growth of existing bacteria in the site and enhance their remediation capabilities

Applications

∗ It is useful to degrade polycylic aromatic hydrocarbons, polychlorinated ethylene, petroleum and reduced uranium and other heavy metals

∗ It is useful to recover the soil from adverse effects of oil spill

∗ Its important application is the remediation of uranium contaminated soil [ example – Fukushima nuclear accident site ]

∗ The primary advantage of biostimulation is that bioremediation will be undertaken by already present native microorganisms that are well-suited to the subsurface environment, and are well distributed spatially within the subsurface

Challenge

∗ Its efficiency varies from one site to another site. Because each site has a unique geology, hydrology, and soil chemistry, affecting the native microbial populations available for degradation

Related Posts
Two reports released on Thursday, one at the global level and the other India-specific, say the country is on track to meet only two (under-five overweight and exclusive breastfeeding rates) ...
READ MORE
Introduction ∗ Bioleaching is the extraction of metals from their ores through the use of living organisms. ∗ It is the Conversion of insoluble metal sulfides into water-soluble metal sulfates. ∗ Nowadays bioleaching ...
READ MORE
Karnataka Govt to introduce public health courses for non-medical staff
The state government is all set to introduce postgraduate and short-term courses in public health for non-medical staff working in various government hospitals across the state. The Department of Health and ...
READ MORE
The Rajya Sabha cleared the Juvenile Justice (Amendment) Bill, 2015 The bill lowers the age of a legally defined juvenile from 18 to 16 in the case of heinous crimes.. The Bill ...
READ MORE
To Expand the municipal limits of Bengaluru
The decision to expand the municipal limits of Bengaluru from 225 sq km to about 800 sq km by incorporating 110 villages, seven City Municipal Councils (CMC) and one Town ...
READ MORE
Urban Development – 74th Constitutional Amendment Act
The passage of 74th CAA has provided new opportunities for urban governance reforms in the country. The municipal bodies have for the first time been provided the constitutional status of the ...
READ MORE
India's Act East Policy focusses on the extended neighbourhood in the Asia-Pacific region. The policy which was originally conceived as an economic initiative, has gained political, strategic and cultural dimensions including ...
READ MORE
The Government has launched Crime and Criminal Tracking Network and Systems (CCTNS) in the country. The aim, objective and salient features of CCTNS are : To fully computerize the process of crime ...
READ MORE
India Celebrate 68th Republic Day – Highlights
The 68th Republic Day parade in New Delhi's Rajpath was a colourful affair tableaux from 17 states and Union Territories showcased the varied historical, art and cultural heritage of the ...
READ MORE
Packaged tours booked through travel &tour agencies will result in a nearly 20% hike
The Centre’s revision of service tax rate for packaged tours booked through travel and tour agencies will result in a nearly 20% hike in charges, which will be passed on ...
READ MORE
State of nutrition in the country
BIOLEACHING
Karnataka Govt to introduce public health courses for
Juvenile Justice (Amendment) Bill, 2015
To Expand the municipal limits of Bengaluru
Urban Development – 74th Constitutional Amendment Act
Act East Policy
Crime and Criminal Tracking Network and Systems
India Celebrate 68th Republic Day – Highlights
Packaged tours booked through travel &tour agencies will