Kiron Lemna Covered Aerated Lagoon

Kiron, IA | Public Works

Overview

ISG worked with the City of Kiron to design an aerated lagoon with top quality disinfection systems.


Opportunity

The City of Kiron needed a wastewater treatment system that incorporated innovative disinfection processes.

Solution

ISG designed a new system consisting of a covered two-cell aerated lagoon with a LEMNA polishing reactor and UV disinfection. A sewage grinder was included in the inlet structure for the lagoon. The existing collection system had two separate force mains that were extended, and flow meters were added to measure the flows coming from both systems. The covered aerated lagoon was designed to handle increased loading from the Infiltration and Inflow (I/I), retain heat during winter months (which decreases the footprint needed for the nitrification process in the polishing reactor), and attain the level of treatment required by the IDNR stream standards and the excess I/I. The operation requirements are now consistent with the City’s mechanical plant, and the improvements also include design and construction services related to the UV disinfection system to comply with E. coli and other bacteriological compliance requirements.


Market News

ISG Adds Minneapolis Architecture Expertise

March 20, 2020 (Minneapolis, Minnesota) – In an effort to strengthen services for a wide range of partners in the Twin Cities and across the Midwest, ISG is joining forces with Architects Rego + Youngquist, LLC. (ARY) of St. Louis Park, Minnesota. As a premier provider of design services in the education, civic and cultural, and healthcare markets, ARY’s talented professionals will add a wider breadth of expertise as they are integrated into ISG’s multi-disciplinary team.
Read More

ISG Water Solutions Team Amplifies Resources, Adds Strategic Talent

January 28, 2020 (Storm Lake, Iowa) – ISG, a professional design and engineering firm that is 100% owned by employees, recently expanded its Water Solutions Group by welcoming long-time Iowa Department of Natural Resources (IDNR) leader Julie Sievers. Ready to embark on this new endeavor with ISG as Senior Water Specialist, Julie will complement a seasoned group of professionals, including internationally recognized Water Solutions Group Leader and Associate Principal, Uma Vempati, PE, PMP, ENV SP, Iowa project leader and Associate Principal, Tom Grafft, and many others within the firm of 315+ professionals.
Read More