What is the lowest lifecycle cost system for odour control?           

   
<p>The lowest lifecycle cost system for odour control can vary depending on specific factors such as the scale of the operation, type and concentration of odorous compounds, regulatory requirements, and available resources. However, some commonly used and cost-effective odour control systems include biofiltration, activated carbon adsorption, and chemical scrubbing. Each of these systems has its own advantages and considerations in terms of capital costs, operating costs, maintenance requirements, and effectiveness in odour removal. A thorough evaluation of the specific needs and conditions of the facility is necessary to determine the most cost-effective system for odour control.</p>



Does Biofilter need a roof?           

   
<p>Biofilters, also known as biofiltration systems, are typically designed with a cover or roofing structure to protect the filter media and provide environmental control. The roofing helps maintain consistent operating conditions within the biofilter and prevents the filter media from getting wet or exposed to extreme weather conditions. It also helps regulate the temperature and humidity inside the biofilter, which is important for the growth and activity of the microbial communities responsible for odour or pollutant removal. Additionally, the roofing helps prevent rainwater from entering the biofilter, which could potentially cause clogging or reduce the filter&#8217;s effectiveness.</p>



What are the general Types of Biofilter systems offered by EES (Elixir Enviro Systems Pvt Ltd)?           

   
<p>We offer different types of Biofiters now – Standard rate Biofilters and High rate Biofilters. Other than this, we have different configurations of the Biofilter systems, including single storey system, multiple-floor system, container-based design etc.</p>
<p>Standard rate biofilters uses modified media from CSIR-NIIST (government of India), a patented media which is being made market suitable based on our experience, which we market under the brand name <em>Cocofil</em>. The second and the recent invention of EES is the High-Rate Biofilters, suitable for places where the area available for the installation is very small. The high rate biofilters require only 1/6<sup>th</sup> or less footprint compared to the Standard rate Biofilters, which is a proprietary design of EES, this is branded and sold as <em>Ultrafil</em> Biofilters.</p>



What are the details required for sizing of the odour control biofilter?           

   
<p>The details required for sizing of a biofilter includes.</p>
<ul class="listing">
<li>The site/factory and machine layout</li>
<li>Production process and production capacity</li>
<li>Odour sources in the process</li>
<li>Details of any flue gas outlet blowers if available</li>
<li>Detailed description of the processing steps</li>
<li>In secondary stage site visit and odour measurement may be required.</li>
</ul>



What is the size required for the Biofilter?           

   
<p>Size of the biofilter is dependent on the odour concentration, production capacity (the estimated Odour load), total flow rate and the type of industry for which the treatment plant needs to be made.</p>



What are the General Pre-treatments used in Biofiltration?           

   
<p>The pre-treatments depend upon the process parameters of the factory or establishment where the odour control to be installed. This can range from</p>
<ol>
<li>Humidifiers</li>
<li>Dust Removal System / Dust Scrubbers</li>
<li>Water Scrubbers</li>
<li>Condensers / Heat exchangers</li>
<li>Dehumidifying towers, etc to name a few.</li>
</ol>



What is the power required to operate a biofilter?           

   
<p>The power required for operation is dependent on the size/kind of the treatment plant as the design for each plant is customized for its application there is no general power consumption data available to establish this. To a minimum power requirement can be for the blower which is used to deliver the air to the Biofilter, about 30minutes per day the biofilter must be irrigated-so one pump and the power required for the pre-treatment units, if any. Generally, the installation in each location is depends on the process they follow, and the end result they wanted.</p>



What are the advantages and disadvantages of Biofilters?           

   
<p>The advantages of biofilters is as follows.</p>
<ul class="listing">
<li>It is the most efficient method for odour removal from flue gas.</li>
<li>Installation and operation cost is low as compared to other kind of systems.</li>
<li>Generally, is the lowest lifetime cost among all types of Odour Control Units (OCUs)</li>
<li>Does not contain any use of chemicals for the process as this is a purely biological system.</li>
<li>The operation has higher level of simplicity and less maintenance.</li>
<li>Doesn’t require any consumables such as bacteria addition or other nutrients once the system is in operation.</li>
</ul>
<p>The disadvantages of biofilters include.</p>
<ul class="listing">
<li>For higher odour concentrations it may require larger area for installation the system.</li>
<li>The bacteria/micro-organisms involved in the degradation of odourous compounds takes up the required nutrients either from the air or from the biological media. Therefore, the media gets consumed as the time progresses. So, the whole media needs to be changed when the life is completed, and this can happen within a time range of 3 to 5 years</li>
</ul>



What are the components of Biofilter system?           

   
<p>The main components of any odour treatment system includes the following.</p>
<ol>
<li>Suction Hoods – These are used for capturing the air from the source efficiently such that mixing up of the odorous air with ambient air is minimized.</li>
<li>Air Duct – The purpose of the air duct is to route the air suctioned from the hood and direct it to the odour treatment section.</li>
<li>Blower – The air blower provides the necessary pressure to suction the odorous air from the source to the biofilter in the designed manner.</li>
<li>Humidification System – This is a preconditioning stage for the odorous air to achieve the required moisture level to be fed to the biofilter. In some cases, some other pre-treatment systems are installed instead of humidifier which will be capable of providing the same humidifying action as mentioned above.</li>
<li>Biofilter – This is the main stage which deals with the removal of odorous compounds from the suctioned air stream and releases odour free air into the atmosphere.</li>
</ol>



What is the general flow diagram of a Biofilter?           

   
<p>All kinds of biofilter systems generally include a Blower for suction of odorous air from the source, a ducting system for routing the air, a humidification system or its equivalent for pre conditioning the air the biofilter for removal of odorous compounds from the air stream. The general block diagram is as shown below.</p>
<p><img fetchpriority="high" decoding="async" class="alignnone size-full wp-image-465" src="https://elixirenviro.in/wp-content/uploads/2023/07/biofilter-flow-diagram.jpg" alt="" width="766" height="201" srcset="https://elixirenviro.in/wp-content/uploads/2023/07/biofilter-flow-diagram.jpg 766w, https://elixirenviro.in/wp-content/uploads/2023/07/biofilter-flow-diagram-300x79.jpg 300w, https://elixirenviro.in/wp-content/uploads/2023/07/biofilter-flow-diagram-724x190.jpg 724w" sizes="(max-width: 766px) 100vw, 766px" /></p>
<p>These kinds of biofilters are generally used for medium and higher odour concentration applications. The area required for installation will be more and the time required for installation will be also more.</p>