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ARC Sewer Corrosion & Odour Research
Linkage Project

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Theme 3 - Liquid Phase Technologies

No.

Partner Title Findings Publication Download
(Restricted)
1 UQ Preservation and Simultaneous Analysis of Relevant Soluable Sulfur Species in Sewage Samples Preservation of liquid samples to allow lab testing of dissolved sulfide compounds. 2nd IWA Specialist Conference on Sewer Ops & Maintenance Full Paper
2 UQ Continuous measurement of dissolved sulfide in sewer systems Development of UV-VIS spectrometr for on-line monitoring of H2S in liquid phase Water Science & Tech-WST 57(3), 375-381 Full Paper
3 UQ Odour control by chemical dosing: A case study A financial analysis of various options for chemical dosing of Tugan-Elanora system at GCW AWA Water, 3/08, 66-71 Full Paper
4 UQ Predicting Hydrogen Sulfide formation in sewers: A new model Modeling of O2 injection into Tugan-Elanora system at GCW AWA Water, 3/08, 61-65 Full Paper
5 UQ Methane formation in sewer systems Methane and sulfide are generated concurrently and compete for electro donors. Potential interactions are discussed. Water Research, 42, 1421-1430 Full Paper
6 UQ Dynamics and dynamic modelling of H2S production in sewer systems Modeling of O2 injection into Tugan-Elanora system at GCW with guidelines for location of O2 injection. Water Research, 42, 2527-2538 Full Paper
7 UQ Nitrite effectively inhibits sulfide and methane production in a laboratory scale sewer reactor Lab dosing identified inhibitory effect on SRB and MA Water Research, 42, 3961-3971 Full Paper
8 UQ Evaluation of oxygen injection as a means of controlling sulfide production in a sewer system Study of the effect of O2 injection on the biofilm and SRB in particular with implications for optimising O2 injection. Water Research, 42, 4549-4561 Full Paper
9 UQ Inhibition of sulfade reducing and methanogenic activities of anaerobic sewer biofilms by ferric iron dosing Lab study of chemistry of Fe3+ dosing and its impact on SRB and MA production. Inhibitory effect identified. Water Research, 43, 4123-4132 Full Paper
10 UQ Sulfur transformation in rising main sewers receiving nitrate dosage Lab study to identify processes for H2S control and develop sulfur transformation model for nitrate dosing. Water Research, 43, 4430-4440 Full Paper
11 UQ Impact of nitrate addition on biofilm properties and activities in rising main sewers Lab study of the impact of nitrate on WW composition and sewer biofilm microbial activity to optimise nitrate dosing. Water Research, 43, 4225-4237 Full Paper
12 UQ Effects of long term pH elevation on the sulfate-reducing and methanogenic activities of anaerobic sewer biofilms Not only did high pH reduce liquid to gas transfer of H2S, but also had inhibitory effect on SRB and even longer on MA. Water Research, 43, 2549-2557 Full Paper
13 UQ Development of a model for assessing methane in rising main sewers Model improved to include methane generation parameters identified in lab and validated in field. Methane dependent on HRT and pipe A/V ration. Water Research, 43, 2874-2884 Full Paper
14 UQ Variation in biofilm structure and activity along the length of a rising main sewer Biofilm composition and activity varies along the length of RM due to substrate type and availability variation along RM length. This needs to be included in modelling. Water Environment Research, 81-8, 800-808 Full Paper
15 UQ Effects of nitrite concentration and exposure time on sulfide and methane production by sewer biofilms Inhibition of SRB increased with conc and time and fitted a dose-response linear model. Supression of MA took 2 days but SRB took 2 weeks and low conc had high persistence. No lag to recovery with MA taking 4 time as long as SRB to recover. Water Research, 44, 4241-4251 Full Paper
16 UQ Simultaneous online measurement of sulfide and nitrate in sewers for ntrate dosage optimisation Developed and proven simultaneous online measurement of sulfide and nitrate using UV-VIS spectrometer. This used to optimise dosing of NO3. Water Science & Technology - WST, 61.3, 651-658 Full Paper
17 UQ Iron salt dosage for sulfide control in sewers induces chemical phosphorous removal during nwastewater treatment Iron salts added upstream of a treatment plant will control odours in sewers and when aerated at WWTP will be completely recovered for precipitation of phosphorus. Water Research, 44, 3467-3475 Full Paper
18 UQ Ferrous salt demand for sulfide control in rising main sewers: Test on laboratory scale sewer system Demand for Fe2+ for sulfide precipitation found to be 0.7M which is lower than theory which suggests 1.0M required. Elemental S found in biofilm and competing anions e.g. P3+ negligiable over length of sewer. Journal of Environmental Engineering, October 2010, 1180-1187Full Paper Full Paper
19 UQ The strong biocidal effect of free nitrous acid on anaerobic sewer biofilm Biocidal effect of the protonated form of nitrite, FNA demonstrated. Biocidal effect strongly associated with FNA concentration. Water Research, 45, 3735-3743 Full Paper
20 UQ Free Nitrous Acid Controls Sulfide and Methane Production in Rising Main Sewers FNA as low as 0.18 mg-N/L can suppress both sulfide and methane production after 24-hour of exposure. The suppression is followed by a slow recovery after stopping the FNA addition. IWA SPN6 Conference Full Paper
21 UQ SCORe-CT: A New Method for Testing Effectiveness of Sulfide-Control Chemicals used in Sewer Systems The method consists of two specially designed laboratory scale systems that mimic sulfide production in real rising main sewers, and a multi‐phase and multi‐facet testin IWA SPN6 Conference Full Paper
22 UQ High Rate Electrochemical Sulfide Removal from Synthetic Feed and Real Domestic Wastewater A system that can generate oxygen in-situ with high transfer efficiency, fine dispersion, high controllability and no requirement for transport and storage. IrOx coated titanium anodes were used to perform the electrochemical oxidation from synthetic feed and real domestic wastewater. IWA SPN6 Conference Abstract
23 UQ Kinetics of Chemical Sulfide Oxidation under High Dissolved Oxygen Levels A model which was developed and validated, was able to predict the change in H2S concentration much better than previous models which were generally based on typical environmental O2 concentrations. IWA SPN6 Conference Abstract
24 UQ A Laboratory Assessment of the Impact of Brewery Wastewater Discharge on Sulfide and Methane Production in a Sewer The discharge of brewery wastewater can give negative impacts to odour and corrosion and will increase the greenhouse gas emissions. The impact of trade waste on sewers is complex, and requires careful assessment for each case. IWA SPN6 Conference Full Paper
25 UQ Integrated Modelling of Biotransformation Processes in Sewer Systems and Wastewater Treatment Plants for Optimising Chemical Dosing to Sewer Networks A comparison of operational costs for four options to achieve a desirable sulfide level in the sewer as well as maintaining WWTP performance.  O2 is the most cost effective option for H2S control alone but ferric chloride is the better option when WWTP costs are included. The need for integrated modelling for the assessment of options of chemical dosing in sewers is demonstrated. IWA SPN6 Conference Abstract
26 UQ Electrochemical sulfide removal from synthetic and real domestic wastewater at high current densities Indirect oxidation with in-situ produced oxygen with removal rate of up to 11.8 gSm-2 of electrode at sulfide concentrations of 30 mgL-1 or higher. Chloride and acetate did not interfere with reaction suggesting reagent-free removal of sulfide is possible. Water Research, 45, 2281-2289 Full Paper
27 UQ Dynamic Microbial Response of Sulfidogenic Wastewater Biofilm to Nitrate Simultaneous investigation of the effects of network dosing for sulfide control in sewers and N and P removal at the downstream WWTP. When the operational cost are included oxygen is no longer the preferred option as ferric chloride becomes favoured. AWA Water, March 2011, 88-91 Full Paper
28 UQ Dynamic Microbial Response of Sulfidogenic Wastewater Biofilm to Nitrate Some species of SRB will persist in wastewater biofilms despite continuous exposure to high levels of nitrate. Nitrate is unlikely to provide lasting H2S suppression in biofilms harboring Desulfovibrio or Desulfomicrobium populations. App Microbio & Biotech, (2011) 91:1647-1657 Full Paper
29 UQ Electrochemical sulfide oxidation from domestic wastewater using mixed metal coated titanium electrodes. Comparison of five different mixed metal oxide (MMO) coated titanium electrode materials for the electrochemical removal of sulfide from domestic wastewater. Water Research. 45(17):5381-5388

Full Paper

30 UQ The dynamic response of sulfate-reducing and methanogenic activities of anaerobic sewer biofilms to ferric dosing. Fe3+ addition to sewers reduces the sulfate-reducing and methanogenic activities of anaerobic sewer biofilms, with a maximum inhibition of approximately 50% achieved after 3 and 7 days, respectively. ASCE Journal of Environmental Engineering, 138(4): 510-517 Full Paper
31 UQ SCORe-CT: A New Method for Testing Effectiveness of Sulfide-Control Chemicals used in Sewer Systems The method consists of two specially designed laboratory scale systems that mimic sulfide production in real rising main sewers, and a multi‐phase and multi‐facet testing protocol. Water Science & Technology, 64(12):2381-2388 Full Paper
32 UQ A Laboratory Assessment of the Impact of Brewery Wastewater Discharge on Sulfide and Methane Production in a Sewer The discharge of brewery wastewater can give negative impacts to odour and corrosion and will increase the greenhouse gas emissions. The impact of trade waste on sewers is complex, and requires careful assessment for each case. Water Science & Technology, 64(8): 1614-1619 Full Paper
33 UQ Electrochemical caustic generation from sewage Study of in-situ electrochemical generation of caustic from sewage and determining the average coulombic efficiency, current density and average required cell voltage input. Electrochemistry Communications, 13(11):1202-1204 Full Paper
34 UQ Electrochemical sulfide oxidation from domestic wastewater using mixed metal-coated titanium electrodes The performance of five different mixed metal oxide (MMO) coated titanium electrode materials were compared for the electrochemical removal of sulfide from domestic wastewater. Ta/Ir and Pt/Ir coated titanium electrodes seem the most suitable electrodes. Water Research, 45 (17), 5381-5388 Full Paper
35 UQ Chemical dosing for sulfide control in Australia: An industry survey Industry survey summarises the current practice in Australia with the view to assist the water industry to further improve their practices and to identify new research questions. Water Research, 45 (2011) 6564-6574 Full Paper
36 UQ Optimization of intermittent, simultaneous dosage of nitrite and hydrochloric acid to control sulfide and methane productions in sewers. Impact of dosing concentration, dosing duration and dosing interval on the suppression and subsequent recovery of sulfide and methane production was examined. FNA of 0.26 mg-N/L was able to suppress. Water Research, 45 (2011) 6163-6172 Full Paper
37 UQ The biocidal effect of free nitrous acid on microorganisms in anaerobic wastewater biofilms Sulfate-reducing and methanogenic activities are reduced after nitrite dosage due to the biocidal effect of free nitrous acid (FNA), the protonated form of nitrite, on bacteria residing in biofilms. LET2011 Conference, June 2011, Amsterdam

Abstract
38 UQ On-line control of magnesium hydroxide dosing for sulfide mitigation in sewers. On-line control methodology for the optimised dosing of Mg(OH)2, based on pH measurement and the wastewater buffer capacity. Sewage acidification due to fermentative is also taken into consideration. OzWater2012 Conference, Sydney, May 2012 Full Paper
39 UQ Development and Field Trials of a Novel Technology for sulfide and Methane Control in Sewers A 6-month field trial in full scale sewers demonstrated effective control of sulfide, reducing average sulfide concentration by 80% in 10 days following each 8-24 h dosage of FNA or FNA+ H2O2. OzWater 2012 Conference, Sydney, May 2012 Full Paper
40

UQ

Laboratory assessment of bioproducts for sulfide and methane control in sewer systems Lab testing the effectiveness of 3 bioproducts for liquid-phase biological treatment of sewer biofilm to control sulfide (H2S) and methane (CH4) in sewers. Science of the Total Environment, 443 (2013), 429-437 Full Paper
41 UQ Impact of iron salt dosage to sewers on sulfide control and methane production in anaerobic sludge digesters A 6-month field trial in full scale sewers demonstrated effective control of sulfide, reducing average sulfide concentration by 80% in 10 days following each 8-24 h dosage of FNA or FNA+ H2O2. Journal of Environmental Engineering (US), 139 (4), 594-601 Full Paper
42 UQ Long-term field test of an electrochemical method for sulfide removal from sewage Field testing showed that Ta/Ir and Pt/Ir coated titanium electrodes could remove sulfide in sewers to below 1 mg/L with 60% coulombic efficency independent of current density. Water Research, 46 (2012) 3085-3093 Full Paper