Electrochemical Resource Recovery from Digestate to Prevent Ammonia Toxicity during Anaerobic Digestion

2012 ◽  
Vol 46 (21) ◽  
pp. 12209-12216 ◽  
Author(s):  
Joachim Desloover ◽  
Andualem Abate Woldeyohannis ◽  
Willy Verstraete ◽  
Nico Boon ◽  
Korneel Rabaey
Keyword(s):  
Anaerobic Digestion ◽  
Resource Recovery ◽  
Ammonia Toxicity

Fundamental Improvements to Anaerobic Digestion Systems at Water Resource Recovery Facilities

2018 ◽  
Vol 2018 (4) ◽  
pp. 353-365
Author(s):  
David Parry ◽  
Cameron Clark ◽  
Corey Kliebert ◽  
Paul Steele
Keyword(s):  
Anaerobic Digestion ◽  
Water Resource ◽  
Resource Recovery

scholarly journals Co-Management of Sewage Sludge and Other Organic Wastes: A Scandinavian Case Study

Energies ◽  
2021 ◽  
Vol 14 (12) ◽  
pp. 3411
Author(s):  
Clara Fernando-Foncillas ◽  
Maria M. Estevez ◽  
Hinrich Uellendahl ◽  
Cristiano Varrone
Keyword(s):  
Anaerobic Digestion ◽  
Sewage Sludge ◽  
Resource Recovery ◽  
Organic Wastes ◽  
Industrial Wastes ◽  
Wastewater Management ◽  
Sewage Sludge Management ◽  
The Common ◽  
Green Chemicals

Wastewater and sewage sludge contain organic matter that can be valorized through conversion into energy and/or green chemicals. Moreover, resource recovery from these wastes has become the new focus of wastewater management, to develop more sustainable processes in a circular economy approach. The aim of this review was to analyze current sewage sludge management systems in Scandinavia with respect to resource recovery, in combination with other organic wastes. As anaerobic digestion (AD) was found to be the common sludge treatment approach in Scandinavia, different available organic municipal and industrial wastes were identified and compared, to evaluate the potential for expanding the resource recovery by anaerobic co-digestion. Additionally, a full-scale case study of co-digestion, as strategy for optimization of the anaerobic digestion treatment, was presented for each country, together with advanced biorefinery approaches to wastewater treatment and resource recovery.

Resource recovery and circular economy from organic solid waste using aerobic and anaerobic digestion technologies

2020 ◽  
Vol 301 ◽  
pp. 122778 ◽  
Author(s):  
Steven Wainaina ◽  
Mukesh Kumar Awasthi ◽  
Surendra Sarsaiya ◽  
Hongyu Chen ◽  
Ekta Singh ◽  
...  
Keyword(s):  
Anaerobic Digestion ◽  
Solid Waste ◽  
Circular Economy ◽  
Resource Recovery ◽  
Organic Solid Waste ◽  
Organic Solid ◽  
Aerobic And Anaerobic

scholarly journals Assessing the integration of forward osmosis and anaerobic digestion for simultaneous wastewater treatment and resource recovery

2018 ◽  
Vol 260 ◽  
pp. 221-226 ◽  
Author(s):  
Ashley J. Ansari ◽  
Faisal I. Hai ◽  
William E. Price ◽  
Huu H. Ngo ◽  
Wenshan Guo ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Anaerobic Digestion ◽  
Forward Osmosis ◽  
Resource Recovery

Application of urea dosing for alkalinity supply during anaerobic digestion of vinasse

2012 ◽  
Vol 66 (11) ◽  
pp. 2453-2460 ◽  
Author(s):  
M. A. Boncz ◽  
E. L. Formagini ◽  
L. da S. Santos ◽  
R. D. Marques ◽  
P. L. Paulo
Keyword(s):  
Anaerobic Digestion ◽  
Power Supply ◽  
Treatment Process ◽  
Ph Regulation ◽  
Anaerobic Treatment ◽  
Ammonia Toxicity ◽  
Hydroelectric Power ◽  
Anaerobic Conditions ◽  
Successful Operation ◽  
Alternative Source

Pushed by demand for renewable energy, the ethanol industry in Brazil is expanding. However, production of 1 m3 of ethanol generates around 13 m3 of liquid residues (vinasse), so this expansion results in an increasing need for a more adequate destination of these residues. Nowadays the vinasse is dispersed on the sugar cane fields in the practice of fertirrigation, but anaerobic digestion of this residue may be a better solution, additionally offering an alternative source of energy, able to complement hydroelectric power supply in the dry season. However, when trying to digest vinasse at reduced hydraulic retention times, complications arise from its strong tendency toward acidification, upsetting the fragile balance of transformations normally occurring under anaerobic conditions. For successful operation of an anaerobic treatment process with acceptable hydraulic residence times, increasing alkalinity levels inside the reactor is neces­sary. In the present work we show that pH regulation by means of urea dosing, in spite of the risk posed by ammonia toxicity towards methanogenic biomass, can be a viable alternative to avoid vinasse acidification. The ammonia formed in urea conversion remains in solution, rather than escaping to the biogas, and so its use as fertiliser can offset its cost of application in the process.

scholarly journals Potensi Biogas dan Pupuk dari Limbah Lumpur Kertas

REAKTOR ◽  
2017 ◽  
Vol 16 (3) ◽  
pp. 141
Author(s):  
Cindy Rianti Priadi ◽  
Iftita Rahmatika ◽  
Chihiya Fitria ◽  
Dwica Wulandari ◽  
Setyo Sarwanto Moersidik
Keyword(s):  
Anaerobic Digestion ◽  
Biogas Production ◽  
High Growth ◽  
Resource Recovery ◽  
Heavy Metal Accumulation ◽  
Paper Sludge ◽  
Cow Manure ◽  
Vetiveria Zizanioides ◽  
Recovery Potential ◽  
Plant Grown

BIOGAS ENERGY AND FERTILIZING POTENTIAL FROM PAPER SLUDGE Paper sludge contains potential as energy and fertilizer due to the high amount of C, N and P. The aims of this study were to investigate resource recovery potential through biogas production from paper sludge only and with cow manure as co-substrate for 30-45 days in batch anaerobic digestion reactor. In addition, the fertilizer potential from digestate was also tested in Vetiveria zizanioides. Co-digestion with cow manure yielded higher methane gas up to 380 CH4/g VS due to a more optimum C/N ratio. Vetiver plants grown on digestate relatively showed the high growth performance after 4 weeks. The heavy metal accumulation from digestate was still in tolerable amount since the growth rate was not significantly different with the plant grown in fertilizer. Therefore, resource recovery technology can be an option to recover C, N and P in paper sludge to achieve sustainable waste management.  Keywords: ananerobic digestion; biogas;  fertilizer; paper sludge AbstrakLumpur dari Air Limbah industri kertas memiliki C, N dan P yang tinggi sehingga berpotensi menghasilkan energi dan menjadi pupuk, Penelitian ini bertujuan untuk meneliti pemulihan sumber daya (resource recovery) melalui produksi biogas dari lumpur kertas tanpa dan dengan ko-substrat kotoran sapi selama 30-45 hari dalam reaktor batch anaerobic digestion. Selanjutnya potensi pupuk dari digestat juga diuji dengan tumbuhan akar wangi (Vetiveria zizanioides). Setelah 45 hari, lumpur kertas dengan kotoran sapi menghasikan gas metana yang lebih besar, yaitu 380 CH4/g VS. Tanaman akar wangi yang ditanam dengan dengan digestat R2 tumbuh relatif tinggi setelah 4 minggu. Akumulasi logam berat juga masih dalam batas aman karena laju pertumbuhannya yang masih sebanding dengan tanaman yang diberi pupuk. Oleh karena itu, pemulihan sumber daya dapat diterapkan untuk memanfaatkan C, N dan P yang terkandung dalam lumpur kertas sebagai usaha pengelolaan limbah berkelanjutan.  Kata Kunci: biogas; digestasi anaerobik; lumpur kertas; pupuk 

Optimization of Anaerobic Digestion for Resource Recovery

2018 ◽  
Vol 2018 (13) ◽  
pp. 2599-2611
Author(s):  
David Parry ◽  
Cameron Clark ◽  
Corey Kliebert ◽  
Paul Steele
Keyword(s):  
Anaerobic Digestion ◽  
Resource Recovery
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