Research on the influence of electrolytes on the low‐temperature start‐up performance of zinc‐air battery for forklifts

2021 ◽  
Author(s):  
Qinguo Zhang ◽  
Zheming Tong ◽  
Shuiguang Tong
Keyword(s):  
Low Temperature ◽  
Start Up ◽  
Air Battery

scholarly journals Start-up Strategies for Anaerobic Ammonia Oxidation (Anammox) in In-Situ Nitrogen Removal from Polluted Groundwater in Rare Earth Mining Areas

2021 ◽  
Vol 13 (8) ◽  
pp. 4591
Author(s):  
Shuanglei Huang ◽  
Daishe Wu
Keyword(s):  
Rare Earth ◽  
Low Temperature ◽  
Removal Efficiency ◽  
Nitrogen Removal ◽  
Ex Situ ◽  
High Concentration ◽  
Low Concentration ◽  
Start Up ◽  
Anammox Activity

The tremendous input of ammonium and rare earth element (REE) ions released by the enormous consumption of (NH4)2SO4 in in situ leaching for ion-adsorption RE mining caused serious ground and surface water contamination. Anaerobic ammonium oxidation (anammox) was a sustainable in situ technology that can reduce this nitrogen pollution. In this research, in situ, semi in situ, and ex situ method of inoculation that included low-concentration (0.02 mg·L−1) and high-concentration (0.10 mg·L−1) lanthanum (La)(III) were adopted to explore effective start-up strategies for starting up anammox reactors seeded with activated sludge and anammox sludge. The reactors were refrigerated for 30 days at 4 °C to investigate the effects of La(III) during a period of low-temperature. The results showed that the in situ and semi in situ enrichment strategies with the addition of La(III) at a low-concentration La(III) addition (0.02 mg·L−1) reduced the length of time required to reactivate the sludge until it reached a state of stable anammox activity and high nitrogen removal efficiency by 60–71 days. The addition of La(III) promoted the formation of sludge floc with a compact structure that enabled it to resist the adverse effects of low temperature and so to maintain a high abundance of AnAOB and microbacterial community diversity of sludge during refrigeration period. The addition of La(III) at a high concentration caused the cellular percentage of AnAOB to decrease from 54.60 ± 6.19% to 17.35 ± 6.69% during the enrichment and reduced nitrogen removal efficiency to an unrecoverable level to post-refrigeration.

scholarly journals A strategy to speed up formation and strengthen activity of biofilms at low temperature

RSC Advances ◽  
2017 ◽  
Vol 7 (37) ◽  
pp. 22788-22796 ◽  
Author(s):  
Huizhi Hu ◽  
Junguo He ◽  
Huarong Yu ◽  
Jian Liu ◽  
Jie Zhang
Keyword(s):  
Low Temperature ◽  
Biofilm Reactors ◽  
Start Up ◽  
Long Time ◽  
Speed Up

The start-up period of biofilm reactors often takes a long time to obtain a mature and stable biofilm, especially at low temperature.

scholarly journals A Flexible Rechargeable Zinc–Air Battery with Excellent Low‐Temperature Adaptability

2020 ◽  
Vol 59 (12) ◽  
pp. 4793-4799 ◽  
Author(s):  
Zengxia Pei ◽  
Ziwen Yuan ◽  
Chaojun Wang ◽  
Shenlong Zhao ◽  
Jingyuan Fei ◽  
...  
Keyword(s):  
Low Temperature ◽  
Air Battery ◽  
Temperature Adaptability

Quick start-up of membrane bioreactor for treating micro-polluted surface water under low temperature

2014 ◽  
Vol 63 (5) ◽  
pp. 350-357
Author(s):  
Haiqing Chang ◽  
Fangshu Qu ◽  
Heng Liang ◽  
Ruibao Jia ◽  
Wei Gao ◽  
...  
Keyword(s):  
Surface Water ◽  
Low Temperature ◽  
Membrane Bioreactor ◽  
Start Up

Effect of C/N on partial nitrification in an MBBR at low temperature

2020 ◽  
Vol 6 (12) ◽  
pp. 3391-3399
Author(s):  
Fan Ding ◽  
Dongbo Liang ◽  
Yaodong Wu ◽  
Dongyue Li ◽  
Wei Bian ◽  
...  
Keyword(s):  
Low Temperature ◽  
Partial Nitrification ◽  
Start Up

An appropriate amount of C/N is crucial for the start-up and stabilization of partial nitrification at low temperature.

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