Dear Marcelo Your question is a little complex, I try to send you some basic information that I hope can help you. You must consider the following points: 1) Wastewater quality and flow pattern: The presence of FOG, TSS and organic compounds with long molecular chains can decrease the efficiency of IFAS plant. The contact time in the IFAS biological reactor is very short so strong peak flow can create problem. 2) Biomass support quality and quantity: The market offers many type of biomass support(carrier) with different plastic material, different specific weight, different specific surface that is the key factor to design and different price that is the economical key factor. It’s easy to find copy maker with low price but in my opinion if you don’t have experience and serious references to check, it’s much better to contact qualified firm with large experience in carrier design, production and application.  The quantity of carrier to use in your aeration basin is related to the results you need to obtain and to the carrier specific surface(m2/m3). 3) Air supply and diffusers The specific air supply as m3 of air/ m3 biological reactor is very high compared to conventional activated sludge because the air amount is the same but the aerated basin much smaller. The carrier presence increases the oxygen transfer rate, how much is related to carrier quantity and characteristic, in any case the diffusers distribution on the tank bottom will be very dense and it’s necessary to adopt diffusers installation system to facilitate the diffusers substitution in the presence of carrier.  Another important factor is the mixing intensity if it’s high a bigger part of the external carrier surface will be without biomass(brush effect) if it’s low the aeration tank condition will be not homogeneous. 4) Final clarification The sludge coming from biological reactor is fine and dispersed with poor settling capacity so I prefer to use DAF plant. The TSS in the DAF effluent are less than 30 mg/l and the floated sludge is concentrated to 2% and more.   IFAS plants must be evaluated when it’s necessary to reduce the plant dimension for land shortage or for underground installation and when the civil works cost is very high. The aeration basin can be 3-4 times smaller than in conventional activated sludge and the DAF requires 5 times less surface than typical settling tank. In many cases IFAS plants are used to increase the organic load capacity for existing plant without civil work increase; normally the results are good but it’s necessary to study very carefully case by case. Dear Your question is a little complex, I try to send you some basic information that I hope can help you. You must consider the following points: 1) Wastewater quality and flow pattern: The presence of FOG, TSS and organic compounds with long molecular chains can decrease the efficiency of IFAS plant. The contact time in the IFAS biological reactor is very short so strong peak flow can create problem. 2) Biomass support quality and quantity: The market offers many type of biomass support(carrier) with different plastic material, different specific weight, different specific surface that is the key factor to design and different price that is the economical key factor. It’s easy to find copy maker with low price but in my opinion if you don’t have experience and serious references to check, it’s much better to contact qualified firm with large experience in carrier design, production and application.  The quantity of carrier to use in your aeration basin is related to the results you need to obtain and to the carrier specific surface(m2/m3). 3) Air supply and diffusers The specific air supply as m3 of air/ m3 biological reactor is very high compared to conventional activated sludge because the air amount is the same but the aerated basin much smaller. The carrier presence increases the oxygen transfer rate, how much is related to carrier quantity and characteristic, in any case the diffusers distribution on the tank bottom will be very dense and it’s necessary to adopt diffusers installation system to facilitate the diffusers substitution in the presence of carrier.  Another important factor is the mixing intensity if it’s high a bigger part of the external carrier surface will be without biomass(brush effect) if it’s low the aeration tank condition will be not homogeneous. 4) Final clarification The sludge coming from biological reactor is fine and dispersed with poor settling capacity so I prefer to use DAF plant. The TSS in the DAF effluent are less than 30 mg/l and the floated sludge is concentrated to 2% and more.   IFAS plants must be evaluated when it’s necessary to reduce the plant dimension for land shortage or for underground installation and when the civil works cost is very high. The aeration basin can be 3-4 times smaller than in conventional activated sludge and the DAF requires 5 times less surface than typical settling tank. In many cases IFAS plants are used to increase the organic load capacity for existing plant without civil work increase; normally the results are good but it’s necessary to study very carefully case by case. Dear Your question is a little complex, I try to send you some basic information that I hope can help you. You must consider the following points: 1) Wastewater quality and flow pattern: The presence of FOG, TSS and organic compounds with long molecular chains can decrease the efficiency of IFAS plant. The contact time in the IFAS biological reactor is very short so strong peak flow can create problem. 2) Biomass support quality and quantity: The market offers many type of biomass support(carrier) with different plastic material, different specific weight, different specific surface that is the key factor to design and different price that is the economical key factor. It’s easy to find copy maker with low price but in my opinion if you don’t have experience and serious references to check, it’s much better to contact qualified firm with large experience in carrier design, production and application.  The quantity of carrier to use in your aeration basin is related to the results you need to obtain and to the carrier specific surface(m2/m3). 3) Air supply and diffusers The specific air supply as m3 of air/ m3 biological reactor is very high compared to conventional activated sludge because the air amount is the same but the aerated basin much smaller. The carrier presence increases the oxygen transfer rate, how much is related to carrier quantity and characteristic, in any case the diffusers distribution on the tank bottom will be very dense and it’s necessary to adopt diffusers installation system to facilitate the diffusers substitution in the presence of carrier.  Another important factor is the mixing intensity if it’s high a bigger part of the external carrier surface will be without biomass(brush effect) if it’s low the aeration tank condition will be not homogeneous. 4) Final clarification The sludge coming from biological reactor is fine and dispersed with poor settling capacity so I prefer to use DAF plant. The TSS in the DAF effluent are less than 30 mg/l and the floated sludge is concentrated to 2% and more.   IFAS plants must be evaluated when it’s necessary to reduce the plant dimension for land shortage or for underground installation and when the civil works cost is very high. The aeration basin can be 3-4 times smaller than in conventional activated sludge and the DAF requires 5 times less surface than typical settling tank. In many cases IFAS plants are used to increase the organic load capacity for existing plant without civil work increase; normally the results are good but it’s necessary to study very carefully case by case. Dear Your question is a little complex, I try to send you some basic information that I hope can help you. You must consider the following points: 1) Wastewater quality and flow pattern: The presence of FOG, TSS and organic compounds with long molecular chains can decrease the efficiency of IFAS plant. The contact time in the IFAS biological reactor is very short so strong peak flow can create problem. 2) Biomass support quality and quantity: The market offers many type of biomass support(carrier) with different plastic material, different specific weight, different specific surface that is the key factor to design and different price that is the economical key factor. It’s easy to find copy maker with low price but in my opinion if you don’t have experience and serious references to check, it’s much better to contact qualified firm with large experience in carrier design, production and application.  The quantity of carrier to use in your aeration basin is related to the results you need to obtain and to the carrier specific surface(m2/m3). 3) Air supply and diffusers The specific air supply as m3 of air/ m3 biological reactor is very high compared to conventional activated sludge because the air amount is the same but the aerated basin much smaller. The carrier presence increases the oxygen transfer rate, how much is related to carrier quantity and characteristic, in any case the diffusers distribution on the tank bottom will be very dense and it’s necessary to adopt diffusers installation system to facilitate the diffusers substitution in the presence of carrier.  Another important factor is the mixing intensity if it’s high a bigger part of the external carrier surface will be without biomass(brush effect) if it’s low the aeration tank condition will be not homogeneous. 4) Final clarification The sludge coming from biological reactor is fine and dispersed with poor settling capacity so I prefer to use DAF plant. The TSS in the DAF effluent are less than 30 mg/l and the floated sludge is concentrated to 2% and more.   IFAS plants must be evaluated when it’s necessary to reduce the plant dimension for land shortage or for underground installation and when the civil works cost is very high. The aeration basin can be 3-4 times smaller than in conventional activated sludge and the DAF requires 5 times less surface than typical settling tank. In many cases IFAS plants are used to increase the organic load capacity for existing plant without civil work increase; normally the results are good but it’s necessary to study very carefully case by case. Dear Your question is a little complex, I try to send you some basic information that I hope can help you. You must consider the following points: 1) Wastewater quality and flow pattern: The presence of FOG, TSS and organic compounds with long molecular chains can decrease the efficiency of IFAS plant. The contact time in the IFAS biological reactor is very short so strong peak flow can create problem. 2) Biomass support quality and quantity: The market offers many type of biomass support(carrier) with different plastic material, different specific weight, different specific surface that is the key factor to design and different price that is the economical key factor. It’s easy to find copy maker with low price but in my opinion if you don’t have experience and serious references to check, it’s much better to contact qualified firm with large experience in carrier design, production and application.  The quantity of carrier to use in your aeration basin is related to the results you need to obtain and to the carrier specific surface(m2/m3). 3) Air supply and diffusers The specific air supply as m3 of air/ m3 biological reactor is very high compared to conventional activated sludge because the air amount is the same but the aerated basin much smaller. The carrier presence increases the oxygen transfer rate, how much is related to carrier quantity and characteristic, in any case the diffusers distribution on the tank bottom will be very dense and it’s necessary to adopt diffusers installation system to facilitate the diffusers substitution in the presence of carrier.  Another important factor is the mixing intensity if it’s high a bigger part of the external carrier surface will be without biomass(brush effect) if it’s low the aeration tank condition will be not homogeneous. 4) Final clarification The sludge coming from biological reactor is fine and dispersed with poor settling capacity so I prefer to use DAF plant. The TSS in the DAF effluent are less than 30 mg/l and the floated sludge is concentrated to 2% and more.   IFAS plants must be evaluated when it’s necessary to reduce the plant dimension for land shortage or for underground installation and when the civil works cost is very high. The aeration basin can be 3-4 times smaller than in conventional activated sludge and the DAF requires 5 times less surface than typical settling tank. In many cases IFAS plants are used to increase the organic load capacity for existing plant without civil work increase; normally the results are good but it’s necessary to study very carefully case by case. Dear Your question is a little complex, I try to send you some basic information that I hope can help you. You must consider the following points: 1) Wastewater quality and flow pattern: The presence of FOG, TSS and organic compounds with long molecular chains can decrease the efficiency of IFAS plant. The contact time in the IFAS biological reactor is very short so strong peak flow can create problem. 2) Biomass support quality and quantity: The market offers many type of biomass support(carrier) with different plastic material, different specific weight, different specific surface that is the key factor to design and different price that is the economical key factor. It’s easy to find copy maker with low price but in my opinion if you don’t have experience and serious references to check, it’s much better to contact qualified firm with large experience in carrier design, production and application.  The quantity of carrier to use in your aeration basin is related to the results you need to obtain and to the carrier specific surface(m2/m3). 3) Air supply and diffusers The specific air supply as m3 of air/ m3 biological reactor is very high compared to conventional activated sludge because the air amount is the same but the aerated basin much smaller. The carrier presence increases the oxygen transfer rate, how much is related to carrier quantity and characteristic, in any case the diffusers distribution on the tank bottom will be very dense and it’s necessary to adopt diffusers installation system to facilitate the diffusers substitution in the presence of carrier.  Another important factor is the mixing intensity if it’s high a bigger part of the external carrier surface will be without biomass(brush effect) if it’s low the aeration tank condition will be not homogeneous. 4) Final clarification The sludge coming from biological reactor is fine and dispersed with poor settling capacity so I prefer to use DAF plant. The TSS in the DAF effluent are less than 30 mg/l and the floated sludge is concentrated to 2% and more.   IFAS plants must be evaluated when it’s necessary to reduce the plant dimension for land shortage or for underground installation and when the civil works cost is very high. The aeration basin can be 3-4 times smaller than in conventional activated sludge and the DAF requires 5 times less surface than typical settling tank. In many cases IFAS plants are used to increase the organic load capacity for existing plant without civil work increase; normally the results are good but it’s necessary to study very carefully case by case. Dear Your question is a little complex, I try to send you some basic information that I hope can help you. You must consider the following points: 1) Wastewater quality and flow pattern: The presence of FOG, TSS and organic compounds with long molecular chains can decrease the efficiency of IFAS plant. The contact time in the IFAS biological reactor is very short so strong peak flow can create problem. 2) Biomass support quality and quantity: The market offers many type of biomass support(carrier) with different plastic material, different specific weight, different specific surface that is the key factor to design and different price that is the economical key factor. It’s easy to find copy maker with low price but in my opinion if you don’t have experience and serious references to check, it’s much better to contact qualified firm with large experience in carrier design, production and application.  The quantity of carrier to use in your aeration basin is related to the results you need to obtain and to the carrier specific surface(m2/m3). 3) Air supply and diffusers The specific air supply as m3 of air/ m3 biological reactor is very high compared to conventional activated sludge because the air amount is the same but the aerated basin much smaller. The carrier presence increases the oxygen transfer rate, how much is related to carrier quantity and characteristic, in any case the diffusers distribution on the tank bottom will be very dense and it’s necessary to adopt diffusers installation system to facilitate the diffusers substitution in the presence of carrier.  Another important factor is the mixing intensity if it’s high a bigger part of the external carrier surface will be without biomass(brush effect) if it’s low the aeration tank condition will be not homogeneous. 4) Final clarification The sludge coming from biological reactor is fine and dispersed with poor settling capacity so I prefer to use DAF plant. The TSS in the DAF effluent are less than 30 mg/l and the floated sludge is concentrated to 2% and more.   IFAS plants must be evaluated when it’s necessary to reduce the plant dimension for land shortage or for underground installation and when the civil works cost is very high. The aeration basin can be 3-4 times smaller than in conventional activated sludge and the DAF requires 5 times less surface than typical settling tank. In many cases IFAS plants are used to increase the organic load capacity for existing plant without civil work increase; normally the results are good but it’s necessary to study very carefully case by case.

Published April 16, 2018 18:50 by Vincenzo Scarlata