Anaerobic co-digestion of sludge cake from poultry slaughtering wastewater treatment and sweet potato: Energy and nutrient recovery

2019 ◽  
Vol 133 ◽  
pp. 489-499 ◽  
Author(s):  
Felippe Martins Damaceno ◽  
Maico Chiarelotto ◽  
Juan C. Pires Salcedo Restrepo ◽  
Eduardo Luiz Buligon ◽  
Luiz Antonio de Mendonça Costa ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Sweet Potato ◽  
Nutrient Recovery ◽  
Sludge Cake

Exergy analysis of nutrient recovery processes

2003 ◽  
Vol 48 (1) ◽  
pp. 27-36 ◽  
Author(s):  
D. Hellström
Keyword(s):  
Wastewater Treatment ◽  
Exergy Analysis ◽  
Chemical Elements ◽  
Source Separation ◽  
Chemical Processes ◽  
Nutrient Recovery ◽  
Black Water ◽  
Recovery Processes ◽  
Exergy Consumption ◽  
Physical And Chemical

In an exergy analysis, the actual consumption of resources in physical and chemical processes is calculated. Energy and chemical elements are not consumed in the processes - they are only transformed into other forms with lower quality. The principals of exergy analysis are illustrated by comparing different wastewater treatment systems for nutrient recovery. One system represents an end-of-pipe structure, whereas other systems include source separation of grey water, black water, and urine. The exergy flows analysed in this paper are those related to management and treatment of organic matter and nutrients. The study shows that the total exergy consumption is lowest for the system with source separation of urine and faeces and greatest for the conventional wastewater treatment system complemented by processes for nutrient recovery.

scholarly journals Identification of thermochemical pathways for the energy and nutrient recovery from digested sludge in wastewater treatment plants

2019 ◽  
Vol 158 ◽  
pp. 1317-1322 ◽  
Author(s):  
Chaudhary Awais Salman ◽  
Sebastian Schwede ◽  
Eva Thorin ◽  
Hailong Li ◽  
Jinyue Yan
Keyword(s):  
Wastewater Treatment ◽  
Wastewater Treatment Plants ◽  
Nutrient Recovery ◽  
Digested Sludge

Operating a two-stage microbial fuel cell–constructed wetland for fuller wastewater treatment and more efficient electricity generation

2015 ◽  
Vol 72 (3) ◽  
pp. 421-428 ◽  
Author(s):  
Liam Doherty ◽  
Yaqian Zhao
Keyword(s):  
Wastewater Treatment ◽  
Microbial Fuel Cells ◽  
Oxygen Demand ◽  
Power Production ◽  
Two Stage ◽  
Ohmic Resistance ◽  
Electrode Separation ◽  
Sludge Cake ◽  
Stage System ◽  
Reactive Phosphorus

By integrating microbial fuel cells (MFCs) into constructed wetlands (CWs) the need and cost of building a reactor are eliminated, while CWs provide the simultaneous redox conditions required for optimum MFC performance. Two single-stage MFC-CWs, with dewatered alum sludge cake as the main wetland medium for enhanced phosphorus removal, were operated to determine the effects of electrode separation and flow regimes on power production and wastewater treatment. When the anode is buried and the cathode is at the air–water interface the system is inhibited by a large ohmic resistance resulting from the increased electrode separation. By placing the cathode directly above the anode and operating the system with simultaneous upflow into the anode and downflow into the cathode the ohmic resistance is reduced. The chemical oxygen demand (COD) removal efficiency was, however, reduced to 64% (compared with 79%). A two-stage system was subsequently run for fuller wastewater treatment and increased power production. The results indicate that a two-stage MFC-CW can increase the normalized energy recovery and improve removal efficiencies of COD, total nitrogen, NH4+, total phosphorus and reactive phosphorus to 93 ± 1.7%, 85 ± 5.2%, 90 ± 5.4%, 98 ± 5.3% and 99 ± 2.9%, respectively.

scholarly journals Potential use of sludge cake from paper mill wastewater treatment as degradable flower pot

2016 ◽  
Vol 21 (4) ◽  
pp. 258-264 ◽  
Author(s):  
Udomsak Kongmuang ◽  
Hathaitip Sritanaudomchai ◽  
Ikuharu Morioka
Keyword(s):  
Wastewater Treatment ◽  
Paper Mill ◽  
Sludge Cake ◽  
Paper Mill Wastewater ◽  
Potential Use

scholarly journals Biochar Based Microbial Fuel Cell for Enhanced Wastewater Treatment and Nutrient Recovery

2016 ◽  
Vol 8 (2) ◽  
pp. 169 ◽  
Author(s):  
Tyler Huggins ◽  
Albert Latorre ◽  
Justin Biffinger ◽  
Zhiyong Ren
Keyword(s):  
Wastewater Treatment ◽  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Nutrient Recovery

Application of MBR to an easily installed municipal wastewater treatment plant

2000 ◽  
Vol 41 (10-11) ◽  
pp. 287-293 ◽  
Author(s):  
M. Ogoshi ◽  
Y. Suzuki
Keyword(s):  
Wastewater Treatment ◽  
Membrane Permeability ◽  
Wastewater Treatment Plant ◽  
Municipal Wastewater ◽  
Membrane Surface ◽  
Treatment Plant ◽  
Hollow Fibre ◽  
Municipal Wastewater Treatment ◽  
Effluent Quality ◽  
Sludge Cake

An easily installed wastewater treatment plant was developed using an MBR process. The plant consists of inlet pumps, automatic fine screen, a main reactor in which aerator-mixer and MF membrane separators are installed and a control board. The main reactor is a sheeted pond which is easily constructed on-site by an excavation. As a result, the installation of this plant is easy and inexpensive, operation is easy, yet the effluent quality is high. The 50 m3/d pilot plant was constructed in our experimental facility in Ibaraki Pref., and operated from January 1997 to April 1998 to evaluate performance, stability and the ease of separation and installation of each unit. The results were satisfactory in all areas, except the durability of membrane permeability in the latter half of the experiment. For both hollow fibre type and plate type, membrane permeability immediately decreased due to the deposit of concentrated sludge cake on the surface, even though continuous bubble washing had been made. Hence,drastic improvement is needed in the way of sludge deposit control on the membrane surface. This is the key for the developed system to become a practical one.

Using co-metabolism to accelerate synthetic starch wastewater degradation and nutrient recovery in photosynthetic bacterial wastewater treatment technology

2015 ◽  
Vol 37 (7) ◽  
pp. 775-784 ◽  
Author(s):  
Haifeng Lu ◽  
Guangming Zhang ◽  
Yufeng Lu ◽  
Yuanhui Zhang ◽  
Baoming Li ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Nutrient Recovery ◽  
Treatment Technology ◽  
Starch Wastewater
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