Bioremediation is the use of a biological remedy to abate or clean up contamination. Unlike remedies where contaminated soil or groundwater is removed for chemical treatment or decontamination, incineration, or burial in a landfill, microbes are used to remedy environmental problems found in soil and groundwater. These microbes are very small organisms, such as bacteria, that live naturally in the environment, and through bioremediation, the growth of certain microbes that use contaminants as a food source are stimulated. Contaminants treated using bioremediation include oil and other petroleum products, solvents and pesticides.
Bioremediation of a contaminated site typically works in one of these two ways:
• By enhancing the growth of pollution-eating microbes that are already living at the contaminated site; or
• By adding specialized microbes to degrade the contaminants
Substances that can be treated with bioremediation: • Hydrocarbons • Benzene, xylene, and toluene • TCE • PCB and other chlorinated compounds • Fuel oils • Fossil fuels
• IN SITU BIOREMEDIATION is the most desirable option due to lower costs and less disturbance since it provides treatment in place avoiding excavation and transport of contaminants.
• EX SITU BIOREMEDIATION involves the removal of waste, either for off-site disposal, or for on‑site treatment, and subsequent return to the subsurface.
IN SITU BIOREMEDIATION
• Natural attenuation – biotransformation occurs naturally; indigenous microbes and nutrients are present
• Biostimulation / Bioenhancement – indigenous microbes are present, but substrates and/or nutrients must be added to foster bioactivity
• Bioaugmentation – necessary microbes required for contaminant degradation are not present, so organisms must be added
Bioaugmentation is an in situ bioremediation, which frequently involves the addition of microorganisms indigenous or exogenous to the contaminated sites.
If site assessments reveal that species of indigenous microorganisms are unable to degrade target contaminants, exogenous microorganisms with the required biochemical capabilities can be introduced to successfully degrade specific waste compounds.
This is also practiced in wastewater and sewage treatment.
Why use bioremediation?
• It is a natural process and is, therefore, perceived as an acceptable waste treatment process;
• The complete destruction of target pollutants is possible instead of transferring contaminants from one environmental medium to another;
• It can often be carried out on site, which eliminates the need to transport waste off site and the potential threats to human health and the environment that may arise during transportation; and
• It is low cost and safer than other clean-up technologies.
SIRAJ-AL-LIEL BIOREMEDIATION PRODUCTS
Our microbial solutions can accomplish soil and groundwater remediation whether the contaminants are chemicals or oil-based. It starts with naturally occurring bacteria and enzymes specially selected to target the contamination type. These carefully blended combinations of microbes and catalysts digest spills and turn them into water and harmless gases without the need to transport and dispose of the waste. Our remediation products and their end results are completely biodegradable. It is usable on both soil and water, and across a variety of industries in a safe, environmentally responsible manner.
• Provides superior bioremediation efficiency;
• Accelerates bioremediation process using microorganisms that are specific for pollution type;
• Provides both short-term and long-term bioremediation; and
• Naturally occurring microorganisms (not genetically modified; safe technology).
• Low cost, low maintenance, and high efficacy;
• Easy to handle, maintain and distribute; and
• Environmentally friendly and significantly lower environmental impact.