Comparison of bio-dissolution of spent Ni–Cd batteries by sewage sludge using ferrous ions and elemental sulfur as substrate

Chemosphere ◽  
2008 ◽  
Vol 70 (6) ◽  
pp. 974-981 ◽  
Author(s):  
Ling Zhao ◽  
Nan-Wen Zhu ◽  
Xiao-Hui Wang
Keyword(s):  
Sewage Sludge ◽  
Elemental Sulfur ◽  
Ferrous Ions

Biolixiviation des métaux lourds et stabilisation des boues d'épuration : essai en bioréacteur opéré en mode cuvée

1993 ◽  
Vol 20 (1) ◽  
pp. 57-64 ◽  
Author(s):  
R. D. Tyagi ◽  
J. F. Blais ◽  
N. Meunier ◽  
D. Kluepfel
Keyword(s):  
Heavy Metals ◽  
Sewage Sludge ◽  
Suspended Solids ◽  
Elemental Sulfur ◽  
Batch Reactor ◽  
Fecal Coliforms ◽  
Sludge Stabilization ◽  
Sludge Digestion ◽  
Batch Time ◽  
Phosphorus And Potassium

A biological process of heavy metals solubilization and sewage sludge stabilization was studied in a batch reactor of 30-L capacity. The acclimatized leaching microflora was composed of two major groups of thiobacilli: less acidophilic and acidophilic. A batch time of 10 days allows a substantial metal solubilization: cadmium (100%), copper (80%), manganese (80%), nickel (46%), and zinc (100%). The bioleaching process also causes a significative decrease in sludge total suspended solids (25%) and volatile suspended solids (32%), and a considerable reduction (under the detection limit of 10 cfu∙mL−1) of indicator bacteria (total coliforms, fecal coliforms, fecal streptococci). After filtration or centrifugation of the leached sludge, the solubilized metals were precipitated by lime neutralization. The phosphorus and potassium sludge contents were not affected by bioleaching process. These results indicate that the process of sludge digestion and metal leaching can be conducted in parallel in the same reactor. Key words: sewage sludge, heavy metals, bioleaching, stabilization, thiobacilli, elemental sulfur.

Can the plant availability of elemental sulfur be enhanced through its combination with sewage sludge and hydrated lime?

1998 ◽  
Vol 78 (3) ◽  
pp. 459-466 ◽  
Author(s):  
G. D. Sulewski ◽  
J. J. Schoenau
Keyword(s):  
Sewage Sludge ◽  
Elemental Sulfur ◽  
Particle Diameter ◽  
Hydrated Lime ◽  
Growth Chamber ◽  
Initial Oxidation ◽  
Plant Availability ◽  
Oxidation Rates ◽  
Handling Characteristics ◽  
S Oxidation

Elemental sulfur (S°) was combined with dried anaerobically digested sewage sludge (DDS) and/or hydrated lime (Ca(OH)2) to create a possible alternative to conventional S° fertilizers. These S° blends were studied in both powdered and pelletized form to discern both the role of DDS as a fertilizer binder and as a potential stimulator of heterotrophic S° oxidation. The S° blends were visually examined to obtain general conclusions regarding surface characteristics and potential plant availability. An incubation lasting 12 wk was used to examine the short-term release of sulfate from fine (mean particle diameter [MPD] = 82 µm) and coarse (MPD = 353 µm) S° blends. Sulfate supply potential and the effects of S° pelletization were studied in the growth chamber with canola as the test crop. An apparent link existed between enhanced S° oxidation rate and a modified surface environment produced by the combination of S° + DDS + Ca(OH)2. Soil amendment with S° blends containing DDS + Ca(OH)2 or Ca(OH)2 showed initial oxidation rates superior to S° alone. Growth chamber observations revealed higher canola yield and sulfate recovery with application of S° blends containing DDS + Ca(OH)2 over S° alone. Attempts at pelletizing the S° blends resulted in improved handling characteristics, but lowered product performance due to poor dispersion in soil. Key words: Elemental sulfur, sewage sludge, oxidation, plant availability

Effect of pyrite, elemental sulfur and ferrous ions on EPS production by metal sulfide bioleaching microbes

2014 ◽  
Vol 24 (4) ◽  
pp. 1171-1178 ◽  
Author(s):  
Zhi-guo HE ◽  
Yan-ping YANG ◽  
Shan ZHOU ◽  
Yue-hua HU ◽  
Hui ZHONG
Keyword(s):  
Elemental Sulfur ◽  
Metal Sulfide ◽  
Ferrous Ions

Bioleaching of Metals from Sewage Sludge: Elemental Sulfur Recovery

1995 ◽  
Vol 121 (7) ◽  
pp. 543-544
Author(s):  
Rajesh Seth ◽  
Durga Prasad ◽  
J. Glynn Henry
Keyword(s):  
Sewage Sludge ◽  
Elemental Sulfur ◽  
Sulfur Recovery

scholarly journals Phosphorus Recovery from Sewage Sludge Using Acidithiobacilli

2021 ◽  
Vol 18 (13) ◽  
pp. 7135
Author(s):  
Surendra K. Pradhan ◽  
Helvi Heinonen-Tanski ◽  
Anna-Maria Veijalainen ◽  
Sirpa Peräniemi ◽  
Eila Torvinen
Keyword(s):  
Sewage Sludge ◽  
Elemental Sulfur ◽  
Phosphorus Recovery ◽  
Acidithiobacillus Thiooxidans ◽  
Plant Nutrient ◽  
Phase 3 ◽  
The Third ◽  
Third Phase ◽  
Global Demand ◽  
Removal Of Heavy Metals

Sewage sludge contains a significant amount of phosphorus (P), which could be recycled to address the global demand for this non-renewable, important plant nutrient. The P in sludge can be solubilized and recovered so that it can be recycled when needed. This study investigated the P solubilization from sewage sludge using Acidithiobacillus thiooxidans and Acidithiobacillus ferrooxidans. The experiment was conducted by mixing 10 mL of sewage sludge with 90 mL of different water/liquid medium/inoculum and incubated at 30 °C. The experiment was conducted in three semi-continuous phases by replacing 10% of the mixed incubated medium with fresh sewage sludge. In addition, 10 g/L elemental sulfur (S) was supplemented into the medium in the third phase. The pH of the A. thiooxidans and A. ferrooxidans treated sludge solutions was between 2.2 and 6.3 until day 42. In phase 3, after supplementing with S, the pH of A. thiooxidans treated sludge was reduced to 0.9, which solubilized and extracted 92% of P. We found that acidithiobacilli supplemented with S can be used to treat sludge, i.e., achieve hygienization, removal of heavy metals, and solubilization and recovery of P.

Biological leaching of heavy metals from anaerobically digested sewage sludge using indigenous sulfur-oxidizing bacteria and sulfur waste in a closed system

2001 ◽  
Vol 43 (2) ◽  
pp. 59-65 ◽  
Author(s):  
K. Kitada ◽  
A. Ito ◽  
K. Yamada ◽  
J. Aizawa ◽  
T. Umita
Keyword(s):  
Heavy Metals ◽  
Sewage Sludge ◽  
Closed System ◽  
Elemental Sulfur ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Sulfur Oxidizing ◽  
Digested Sewage Sludge ◽  
Sulfur Oxidizing Bacteria

The utilization of indigenous sulfur-oxidizing bacteria and sulfur waste was investigated in order to remove heavy metals from anaerobically digested sewage sludge economically. Indigenous sulfur-oxidizing bacteria existing in anaerobically digested sewage sludge were activated by adding elemental sulfur to the sludge and then the bacteria were isolated. It was found that indigenous sulfur-oxidizing bacteria could utilize sulfur waste generated by desulfurization of digestion gas as a substrate. Then, biological leaching of heavy metals from anaerobically digested sewage sludge was carried out using indigenous sulfur-oxidizing bacteria and sulfur waste. By adding sulfur waste to sewage sludge, sulfuric acid was produced by the bacteria and the sludge pH decreased. Heavy metals in sewage sludge were effectively removed owing to the decrease of pH. The optimum amount of sulfur waste added to decrease the pH sufficiently was 5g/L when the sludge concentration was 2%. It was presented that the biological leaching of heavy metals from sewage sludge can be carried out in a closed system, where all required materials are obtained in a sewage treatment plant.

Residue analysis of sediment and sewage sludge for organochlorines in the presence of elemental sulfur

1977 ◽  
Vol 49 (2) ◽  
pp. 316-318 ◽  
Author(s):  
Soren. Jensen ◽  
Lars. Renberg ◽  
Lars. Reutergardh
Keyword(s):  
Sewage Sludge ◽  
Elemental Sulfur ◽  
Residue Analysis

Bioleaching of Metals from Sewage Sludge: Elemental Sulfur Recovery

1994 ◽  
Vol 120 (2) ◽  
pp. 462-470 ◽  
Author(s):  
B. R. Ravishankar ◽  
J. F. Blais ◽  
H. Benmoussa ◽  
R. D. Tyagi
Keyword(s):  
Sewage Sludge ◽  
Elemental Sulfur ◽  
Sulfur Recovery

Scanning Electron Microscope Study of Bacteria on Mineral Surfaces

1976 ◽  
Vol 34 ◽  
pp. 130-131
Author(s):  
V.K. Berry
Keyword(s):  
Oxidation Reaction ◽  
Electron Microscope Study ◽  
Elemental Sulfur ◽  
Thiobacillus Ferrooxidans ◽  
Physical Contact ◽  
Metal Sulfides ◽  
Low Grade ◽  
Mineral Surfaces ◽  
Mineral Surface ◽  
Scanning Electron Microscope Study

There are two strains of bacteria viz. Thiobacillus thiooxidansand Thiobacillus ferrooxidanswidely mentioned to play an important role in the leaching process of low-grade ores. Another strain used in this study is a thermophile and is designated Caldariella .These microorganisms are acidophilic chemosynthetic aerobic autotrophs and are capable of oxidizing many metal sulfides and elemental sulfur to sulfates and Fe2+ to Fe3+. The necessity of physical contact or attachment by bacteria to mineral surfaces during oxidation reaction has not been fairly established so far. Temple and Koehler reported that during oxidation of marcasite T. thiooxidanswere found concentrated on mineral surface. Schaeffer, et al. demonstrated that physical contact or attachment is essential for oxidation of sulfur.

Sign in / Sign up

Export Citation Format

Share Document