Free nitrous acid-based suppression of sulfide production in sewer sediments: In-situ effect mechanism

2020 ◽  
Vol 715 ◽  
pp. 136871 ◽  
Author(s):  
Zhiqiang Zuo ◽  
Min Zheng ◽  
Jian Chang ◽  
Daheng Ren ◽  
Xia Huang ◽  
...  
Keyword(s):  
Nitrous Acid ◽  
Free Nitrous Acid ◽  
Effect Mechanism ◽  
Sulfide Production

Enhanced dewaterability of anaerobically digested sludge by in-situ free nitrous acid treatment

2020 ◽  
Vol 169 ◽  
pp. 115264 ◽  
Author(s):  
Yifu Li ◽  
Dongbo Wang ◽  
Guojing Yang ◽  
Xingzhong Yuan ◽  
Qiuxiang Xu ◽  
...  
Keyword(s):  
Nitrous Acid ◽  
Acid Treatment ◽  
Digested Sludge ◽  
Free Nitrous Acid ◽  
Anaerobically Digested Sludge

scholarly journals Nitrite oxidizing bacteria suppression based on in-situ free nitrous acid production at mainstream conditions

2017 ◽  
Vol 186 ◽  
pp. 55-62 ◽  
Author(s):  
Alba Pedrouso ◽  
Ángeles Val del Río ◽  
Nicolás Morales ◽  
Jose R. Vázquez-Padín ◽  
Jose L. Campos ◽  
...  
Keyword(s):  
Nitrous Acid ◽  
Acid Production ◽  
Free Nitrous Acid ◽  
Nitrite Oxidizing Bacteria

Combined hydrothermal and free nitrous acid, alkali and acid pretreatment for biomethane recovery from municipal sludge

2021 ◽  
Vol 131 ◽  
pp. 376-385
Author(s):  
Farokh laqa Kakar ◽  
Neha Purohit ◽  
Frances Okoye ◽  
Steven N. Liss ◽  
Elsayed Elbeshbishy
Keyword(s):  
Nitrous Acid ◽  
Municipal Sludge ◽  
Acid Pretreatment ◽  
Free Nitrous Acid

scholarly journals Exploring the atmospheric chemistry of nitrous acid (HONO) at a rural site in Southern China

2012 ◽  
Vol 12 (3) ◽  
pp. 1497-1513 ◽  
Author(s):  
X. Li ◽  
T. Brauers ◽  
R. Häseler ◽  
B. Bohn ◽  
H. Fuchs ◽  
...  
Keyword(s):  
Atmospheric Chemistry ◽  
Nitrous Acid ◽  
Southern China ◽  
Rural Site ◽  
Pearl River Delta Region ◽  
Additional Source ◽  
Mixing Ratios ◽  
Photolysis Frequency ◽  
The Pearl River

Abstract. We performed measurements of nitrous acid (HONO) during the PRIDE-PRD2006 campaign in the Pearl River Delta region 60 km north of Guangzhou, China, for 4 weeks in June 2006. HONO was measured by a LOPAP in-situ instrument which was setup in one of the campaign supersites along with a variety of instruments measuring hydroxyl radicals, trace gases, aerosols, and meteorological parameters. Maximum diurnal HONO mixing ratios of 1–5 ppb were observed during the nights. We found that the nighttime build-up of HONO can be attributed to the heterogeneous NO2 to HONO conversion on ground surfaces and the OH + NO reaction. In addition to elevated nighttime mixing ratios, measured noontime values of ≈200 ppt indicate the existence of a daytime source higher than the OH + NO→HONO reaction. Using the simultaneously recorded OH, NO, and HONO photolysis frequency, a daytime additional source strength of HONO (PM) was calculated to be 0.77 ppb h−1 on average. This value compares well to previous measurements in other environments. Our analysis of PM provides evidence that the photolysis of HNO3 adsorbed on ground surfaces contributes to the HONO formation.

Achieving nitritation by treating sludge with free nitrous acid: The effect of starvation

2019 ◽  
Vol 271 ◽  
pp. 159-165 ◽  
Author(s):  
Xi Nan ◽  
Bin Ma ◽  
Wenting Qian ◽  
Hongbo Zhu ◽  
Xiyao Li ◽  
...  
Keyword(s):  
Nitrous Acid ◽  
Free Nitrous Acid
Sign in / Sign up

Export Citation Format

Share Document