Thermoeconomic assessment of a sustainable municipal wastewater treatment system

2012 ◽  
Vol 48 ◽  
pp. 424-435 ◽  
Author(s):  
Aysegul Abusoglu ◽  
Sinan Demir ◽  
Mehmet Kanoglu
Keyword(s):  
Wastewater Treatment ◽  
Municipal Wastewater ◽  
Treatment System ◽  
Municipal Wastewater Treatment ◽  
Wastewater Treatment System

Performance of hybrid small wastewater treatment system consisting of jet mixed separator and rotating biological contactor

1997 ◽  
Vol 35 (6) ◽  
pp. 63-70 ◽  
Author(s):  
Yoshimasa Watanabe ◽  
Yoshihiko Iwasaki
Keyword(s):  
Wastewater Treatment ◽  
Electric Power ◽  
Hybrid System ◽  
Municipal Wastewater ◽  
Treatment Plant ◽  
Treatment System ◽  
Municipal Wastewater Treatment ◽  
Wastewater Treatment System ◽  
Pre Treatment ◽  
Organic Particles

This paper describes a pilot plant study on the performance of a hybrid small municipal wastewater treatment system consisting of a jet mixed separator(JMS) and upgraded RBC. The JMS was used as a pre-treatment of the RBC instead of the primary clarifier. The treatment capacity of the system was fixed at 100 m3/d, corresponding to the hydraulic loading to the RBC of 117 L/m2/d. The effluent from the grid chamber at a municipal wastewater treatment plant was fed into the hybrid system. The RBC was operated using the electric power produced by a solar electric generation panel with a surface area of 8 m2 under enough sunlight. In order to reduce the organic loading to the RBC, polyaluminium chloride(PAC) was added to the JMS influent to remove the colloidal and suspended organic particles. At the operational condition where the A1 dosage and hydraulic retention time of the JMS were fixed at 5 g/m3 and 45 min., respectively, the average effluent water quality of hybrid system was as follows: TOC=8 g/m3, Total BOD=8 g/m3, SS=8 g/m3, Turbidity=6 TU, NH4-N=7 g/m3, T-P=0.5 g/m3. In this operating condition, electric power consumption of the RBC for treating unit volume of wastewater is only 0.07 KWH/m3.

Towards a more sustainable municipal wastewater treatment system

1997 ◽  
Vol 35 (9) ◽  
pp. 171-180 ◽  
Author(s):  
Mike S. M. Jetten ◽  
Svein J. Horn ◽  
Mark C. M. van Loosdrecht
Keyword(s):  
Wastewater Treatment ◽  
Partial Oxidation ◽  
Electron Donor ◽  
Nitrogen Removal ◽  
Municipal Wastewater ◽  
Energy Generation ◽  
Microbial Processes ◽  
Treatment System ◽  
Municipal Wastewater Treatment ◽  
Wastewater Treatment System

The present day wastewater treatment practise can be significantly improved when new microbial processes are introduced. In this paper a new concept is discussed along general lines. The concept consists of a first stage in which a maximal sludge production is achieved. In this way COD is removed as sludge and aeration requirements minimized. This sludge can be digested to yield methane for energy generation. The nitrogen removal is based on a partial oxidation to nitrite and subsequent denitrification with ammonium as electron donor.

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