when historic floods\u00a0hit the town of anamosa<\/a>, iowa, the water rose to around four feet inside the local water treatment plant<\/a>. as the plant-filled with murky floodwaters, it sustained significant damage, including harm to mechanical and electrical frameworks. together, the loss of these systems and structural unbalance put the plant out of commission. city leaders recognized the need for repairs and hired snyder & associates to spearhead the project, including funding assistance<\/a>, design, and construction management<\/a>.<\/p>\n
as waters receded, flood recovery efforts quickly followed with an initial focus on repairs to vital system mechanisms. at the time, the federal emergency management agency (fema) and iowa homeland security & emergency management funds were better suited for repair and recovery<\/a>, therefore no investments were made for mitigation in anticipation of future flood concerns. with the number of rainfall events producing intense precipitation projected to increase in the coming years, it was evident that without significant changes, the plant would flood again.<\/p>\n
through combined efforts by city officials and our team, this project received two additional funding opportunities, ijobs and community development block grant (cdbg), adding to the project funds and totaling over $6 million. this money was used in the design and construction of flood mitigated wastewater treatment plant improvements<\/a>.<\/p>\n
a trickling filter (tf) is an aerobic treatment system that utilizes microorganisms attached to fixed media such as rocks, gravels, or plastics to remove organic matter from wastewater. this type of system had been widely used across iowa but has been phased out due to an inability to meet state nitrogen and phosphorous removal goals and recommendations.<\/p>\n
its replacement, the aeration activated sludge (aero-mod) treatment system, is currently the most common wastewater treatment option for mechanical plants across the country. during this process, bacteria-rich deposits called “sludge” are seeded into incoming wastewater. the mixture is agitated with continuous aeration for several hours in a concrete tank to further biological treatment and activity, meaning microorganisms using pollutants as a food source.<\/p>\n
this aero-mod system successfully removes nitrogen and phosphorus, while also being energy and spatially efficient as all processes occur in one tank versus the multiple containers required by the previous system.<\/p>\n
grant funding from both ijobs and cdbg required a swift construction start. however, challenges occurred when gaining the iowa department of natural resources (dnr) construction permit approval<\/a>. after discussion and negotiations, snyder and associates were able to meet all dnr requirements, and construction began as scheduled with grant funding.<\/p>\n
the plans designed by snyder & associates provided the city of anamosa with a new wastewater treatment facility, finished water quality improvements, and overall cost savings. in addition, the design resulted in an empty structure where the old facility once operated. anamosa’s wastewater superintendent, dan smith, took the opportunity to convert that structure into storage that currently holds treatment materials such as sand, salt, and dry sludge. he worked closely with our team throughout the 2022世界杯32强预选赛 , construction, and remodel phases to ultimately save the city over $800,000 while creating a wastewater treatment facility that is eco-friendly.<\/p>\n
since this plant’s construction, as additional funding and updated technologies become available, snyder & associates and the wastewater superintendent continue to work together, making proactive upgrades to the plant, securing successful operations for years to come.<\/p>\n","protected":false},"excerpt":{"rendered":"
flood damage leads to a new, upgraded wastewater treatment plant when historic floods\u00a0hit the town of anamosa, iowa, the water rose to around four feet inside the local water treatment plant. as the plant-filled with murky floodwaters, it sustained significant damage, including harm to mechanical and electrical frameworks. together, the loss of these systems and […]<\/p>\n","protected":false},"featured_media":7970,"template":"","categories":[30],"project_categories":[54],"client_type":[58],"location":[74],"class_list":["post-834","snyder-projects","type-snyder-projects","status-publish","has-post-thumbnail","hentry","category-water","project_categories-wastewater","client_type-municipal","location-cedar-rapids"],"acf":[],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\n\t\t\n