Houweling, Dwight

Titles from this speaker

Eliminating N2O Emissions to Zero: ZeeLung™ MABR Shows the Way

Abstract

MABR has been identified as a technology with the potential to significantly reduce N2O emissions from mainstream and sidestream biological treatment. Continuous monitoring data of N2O emissions from two different MABR operations are assessed – one in a warm climate and the other a cold climate. Results indicate, respectively, average emission factors of 0.4 and 0.8% with peak emissions, as characterized by the 90th percentile, of 0.5% and 1.2%. These results compare favorably with reported emission factors for conventional activated sludge. Factors that would impact design and feasibility of exhaust gas post-treatment are considered. In addition to a low N2O emission, MABR can dramatically decrease the airflow that carries this emission as well as minimizing emission “peaks”. By providing reliably low and stable N2O emissions, concentrated in a relatively small airflow, it is argued that MABR can be an important piece of the puzzle in eliminating one of the most significant contributors to a utility’s GHG emissions and carbon footprint.

The following conference paper was presented at WEFTEC 2021, October 16-20, 2021. To read the full abstract, see "Abstract" tab below.

SpeakerHouweling, Dwight

Presentation time

11:30:00

11:45:00

Session time

11:00:00

12:00:00

SessionN2O Emissions from Water Resource Recovery Facilities

Session number415

TopicFacility Operations and Maintenance, Municipal Wastewater Treatment Design, Nutrients, Sustainability and Climate Change

Author(s)

Dwight Houweling

Author(s)D. Houweling1;N. Uri2;M. di Pofi3;S. Baumgarten4;D. Coutts5;G. Guglielmi6;J. Peeters7;A. Kaldate8;

Author affiliation(s)Dynamita North America. ON, CA1VandCenter Syd. Odense C, DE2SUEZ Water Technologies and Solutions. Oakville, ON, CA1,3,4,5,6,7,8

SourceProceedings of the Water Environment Federation

Document typeConference Paper

PublisherWater Environment Federation

Print publication date Oct 2021

DOI10.2175/193864718825158174

Volume / Issue

Content sourceWEFTEC

Word count11

Exhaust Gas Monitoring from MABR: A New Alternative for Biological Process Control

Abstract

The increasing adoption of MABR in the wastewater treatment industry is leading to new understandings of behavior under field conditions. One example is the unique behavior of MABR biofilms under diurnal load variations. The natural Ammonia-Based-Nitrification-Control (ABNC) of counter-diffusional MABR biofilms is explored with respect to its potential for process monitoring and process control. Process monitoring because mixed liquor ammonia concentrations can be directly correlated to MABR exhaust oxygen. MABR exhaust gas monitoring can therefore provide a low-cost alternative, or complement, to immersed liquid ammonia sensors. Process control because knowledge and insights from exhaust oxygen monitoring can be used to better optimize, in hybrid systems, the synergistic balance between biofilm and mixed liquor nitrification. The resilience of MABR-based process monitoring and control is highlighted. Exhaust gas sensors, which are kept “high and dry”, are found to be more reliable than liquid sensors, which are subjected to the corrosive environment of wastewater and mixed liquor.

SpeakerHouweling, Dwight

Presentation time

11:30:00

12:00:00

Session time

11:30:00

12:30:00

SessionMABR Operations and Optimization

Session number8D

TopicEnergy Production, Conservation, and Management, Facility Operations and Maintenance, Municipal Wastewater Treatment Design, Nutrients

Author(s)

L. RiegerJ. PeetersD. HouwelingD. HouwelingJ. KaganskyG. Stock

Author(s)L. Rieger1; J. Peeters2; D. Houweling2; D. Houweling2; J. Kagansky3; G. Stock4;

Author affiliation(s)inCTRL Solutions Inc, ON1; SUEZ Water Technologies & Solutions, ON2; SUEZ Water Technologies & Solutions3; SUEZ Water Technologies & Solutions, Ontario4

SourceProceedings of the Water Environment Federation

Document typeConference Paper

PublisherWater Environment Federation

Print publication date Oct 2020

DOI10.2175/193864718825157590

Volume / Issue

Content sourceWEFTEC

Word count13

Process Modeling of Pulp and Paper Wastewater Treatment Ponds

Abstract

A new commercially available pond model was used to develop and dynamically calibrate a process model of a pulp and paper mill wastewater treatment facility. The process consists of primary treatment and four treatment ponds operated in series prior to discharge. The model showed very good calibration of carbonaceous material, nitrogenous parameters, and dissolved oxygen and was used to predict and optimize treatment performance, aeration demand, and help with aeration equipment sizing.

SpeakerFrank, Kevin

Presentation time

11:00:00

11:30:00

Session time

10:30:00

11:30:00

SessionUsing Modeling to Improve Industrial Wastewater Treatment

Session locationRoom S402b - Level 4

TopicIntermediate Level

Author(s)

Frank, Kevin