scholarly journals Treatment of sidestream dewatering liquors from thermally hydrolised and anaerobically digested biosolids

2020 ◽  
Vol 15 (1) ◽  
pp. 142-150
Author(s):  
W. Driessen ◽  
J. T. A. Van Veldhoven ◽  
M. P. M. Janssen ◽  
M. C. M. Van Loosdrecht
Keyword(s):  
Treatment Plant ◽  
Excellent Performance ◽  
Term Operation ◽  
Large Fluctuations ◽  
Sidestream Treatment ◽  
Dilution Water ◽  
Nitrogen Potential ◽  
Removal Efficiencies ◽  
Removal And Recovery

Abstract A long term operation (22 months) of the sidestream treatment plant at the water and resource recovery facility at the Tilburg sewage works in The Netherlands is presented. This plant treats dewatering reject liquor from thermally hydrolysed (THP) and mesophillic anaerobically digested (MAD) biosolids. The sidestream plant is comprised of a Phospaq struvite reactor for removal and recovery of phosphate and an Anammox reactor for removal of ammoniacal nitrogen. Potential inhibiting characteristics of THP-MAD reject liquor were successfully mitigated by various measures like pre-aeration and addition of dilution water. The sidestream plant demonstrated excellent performance in handling large fluctuations in load and composition, producing effluent with stable low NH4 and BOD concentrations achieving removal efficiencies up to 90% on both NH4 and BOD.

Performance of membrane bioreactor combined with pre-coagulation/sedimentation

2004 ◽  
Vol 4 (1) ◽  
pp. 143-149 ◽  
Author(s):  
T. Itonaga ◽  
Y. Watanabe
Keyword(s):  
Membrane Fouling ◽  
Membrane Bioreactor ◽  
Suspended Solids ◽  
Extracellular Polymeric Substances ◽  
Municipal Wastewater ◽  
Treatment Plant ◽  
Municipal Wastewater Treatment ◽  
Term Operation ◽  
Made In

This paper deals with the performance of a hybrid membrane bioreactor (MBR) combined with pre-coagulation/sedimentation. Primary clarifier effluent in a municipal wastewater treatment plant was fed into the hybrid MBR to investigate its performance during long-term operation. Pre-coagulation/sedimentation process efficiently removed the suspended solids including organic matter and phosphorus. Comparison of the hybrid MBR and conventional MBR was made in terms of the permeate quality and membrane fouling. As the organic loading to the MBR was significantly reduced by the pre-coagulation/sedimentation, production and accumulation of extracellular polymeric substances (EPS) may be limited. Therefore, the mixed liquor viscosity in the hybrid MBR was much lower than that in the conventional MBR. These effect caused by pre-coagulation/sedimentation brought a remarkable improvement in both permeate quality and membrane permeability.

Validation of a fully autonomous phosphate analyser based on a microfluidic lab-on-a-chip

2010 ◽  
Vol 61 (7) ◽  
pp. 1811-1818 ◽  
Author(s):  
C. Slater ◽  
J. Cleary ◽  
K.-T. Lau ◽  
D. Snakenborg ◽  
B. Corcoran ◽  
...  
Keyword(s):  
Waste Water Treatment ◽  
Treatment Plant ◽  
Lab On A Chip ◽  
Extended Period ◽  
Water Treatment Plant ◽  
Waste Water Treatment Plant ◽  
Electronic Components ◽  
Term Operation ◽  
Available Phosphate

This work describes the design of a phosphate analyser that utilises a microfluidic lab-on-a-chip. The analyser contains all the required chemical storage, pumping and electronic components to carry out a complete phosphate assay. The system is self-calibrating and self-cleaning, thus capable of long-term operation. This was proven by a bench top calibration of the analyser using standard solutions and also by comparing the analyser's performance to a commercially available phosphate monitor installed at a waste water treatment plant. The output of the microfluidic lab-on-a-chip analyser was shown to have sensitivity and linear range equivalent to the commercially available monitor and also the ability to operate over an extended period of time.

Innovations in the Design and Construction of a Modified UNITANK Wastewater Treatment Plant

2014 ◽  
Vol 955-959 ◽  
pp. 2310-2312
Author(s):  
Hai Liang Zheng ◽  
Zheng Xiao ◽  
Yao Wen Wu ◽  
Wei Jiang
Keyword(s):  
Wastewater Treatment ◽  
Wastewater Treatment Plant ◽  
Large Scale ◽  
Treatment Plant ◽  
Term Operation ◽  
Pollutants Removal ◽  
Operation Results ◽  
Operation Cost ◽  
Design And Construction

Innovations in the design and construction of a large scale modified UNITANK wastewater treatment plant (WWTP) are introduced in this paper. Long term operation results indicate that the Qianfeng II WWTP shows good pollutants removal performance and reduces operation cost greatly by saving phosphorus removal chemicals, which demonstrates that these innovations are practical and could be popularized for the similar projects in the future.

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