Investigation on thiosulfate-involved organics and nitrogen removal by a sulfur cycle-based biological wastewater treatment process.

废水 硫黄 环境化学 缺氧水域 流出物 硫代硫酸钠 制浆造纸工业
作者
Jin Qian,Hui Lu,Yanxiang Cui,Li Wei,Rulong Liu,Guanghao Chen
出处
期刊:Water Research [Elsevier BV]
卷期号:69: 295-306 被引量:46
标识
DOI:10.1016/j.watres.2014.11.038
摘要

Abstract Thiosulfate, as an intermediate of biological sulfate/sulfite reduction, can significantly improve nitrogen removal potential in a biological sulfur cycle-based process, namely the S ulfate reduction- A utotrophic denitrification- N itrification I ntegrated (SANI®) process. However, the related thiosulfate bio-activities coupled with organics and nitrogen removal in wastewater treatment lacked detailed examinations and reports. In this study, S2O32− transformation during biological SO42−/SO32− co-reduction coupled with organics removal as well as S2O32− oxidation coupled with chemolithotrophic denitrification were extensively evaluated under different experimental conditions. Thiosulfate is produced from the co-reduction of sulfate and sulfite through biological pathway at an optimum pH of 7.5 for organics removal. And the produced S2O32− may disproportionate to sulfide and sulfate during both biological S2O32− reduction and oxidation most possibly carried out by Desulfovibrio-like species. Dosing the same amount of nitrate, pH was found to be the more direct factor influencing the denitritation activity than free nitrous acid (FNA) and the optimal pH for denitratation (7.0) and denitritation (8.0) activities were different. Spiking organics significantly improved both denitratation and denitritation activities while minimizing sulfide inhibition of NO3− reduction during thiosulfate-based denitrification. These findings in this study can improve the understanding of mechanisms of thiosulfate on organics and nitrogen removal in biological sulfur cycle-based wastewater treatment.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
虚心的不二完成签到 ,获得积分10
2秒前
xuzj应助科研通管家采纳,获得10
3秒前
小马甲应助科研通管家采纳,获得10
3秒前
3秒前
思源应助科研通管家采纳,获得10
3秒前
3秒前
研友_VZG7GZ应助科研通管家采纳,获得10
3秒前
fang应助科研通管家采纳,获得10
3秒前
隐形曼青应助科研通管家采纳,获得10
3秒前
科研通AI5应助科研通管家采纳,获得10
3秒前
FashionBoy应助科研通管家采纳,获得10
3秒前
shiizii应助科研通管家采纳,获得10
3秒前
5秒前
火星上的雨莲完成签到,获得积分10
9秒前
开朗的绮山发布了新的文献求助150
9秒前
平淡远山发布了新的文献求助10
10秒前
热心市民小红花应助Roman采纳,获得10
11秒前
艺术家完成签到 ,获得积分10
12秒前
研友_ngqjz8完成签到,获得积分10
13秒前
LT完成签到 ,获得积分0
14秒前
优秀的dd完成签到 ,获得积分10
15秒前
JamesPei应助八月宁静采纳,获得10
15秒前
www完成签到 ,获得积分10
17秒前
自由如天完成签到,获得积分10
17秒前
轻松白桃给轻松白桃的求助进行了留言
18秒前
热心市民小红花应助Roman采纳,获得10
19秒前
简单的元珊完成签到,获得积分10
20秒前
wanci应助饮汽水采纳,获得10
21秒前
量子星尘发布了新的文献求助10
21秒前
成就映秋完成签到,获得积分10
21秒前
cherrychou完成签到,获得积分10
23秒前
不要引力完成签到,获得积分10
24秒前
25秒前
邵初蓝完成签到,获得积分10
25秒前
沙耶发布了新的文献求助200
26秒前
JOKER完成签到 ,获得积分10
28秒前
泥過完成签到 ,获得积分10
29秒前
张姣姣完成签到,获得积分10
29秒前
OLDBLOW发布了新的文献求助10
29秒前
30秒前
高分求助中
【提示信息,请勿应助】关于scihub 10000
Les Mantodea de Guyane: Insecta, Polyneoptera [The Mantids of French Guiana] 3000
徐淮辽南地区新元古代叠层石及生物地层 3000
The Mother of All Tableaux: Order, Equivalence, and Geometry in the Large-scale Structure of Optimality Theory 3000
Handbook of Industrial Diamonds.Vol2 1100
Global Eyelash Assessment scale (GEA) 1000
Picture Books with Same-sex Parented Families: Unintentional Censorship 550
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 4038235
求助须知:如何正确求助?哪些是违规求助? 3575992
关于积分的说明 11374009
捐赠科研通 3305760
什么是DOI,文献DOI怎么找? 1819276
邀请新用户注册赠送积分活动 892662
科研通“疑难数据库(出版商)”最低求助积分说明 815022