Results 271 to 280 of about 1,966,257 (308)

Preparation of a new low-cost substrate prepared from drinking water treatment sludge (DWTS)/bentonite/zeolite/fly ash for rapid phosphorus removal in constructed wetlands

, 2020
With the increase of tap water demand and treatment volume, the by-product of the water supply plant-drinking water treatment sludge (DWTS) is increasing, and its final disposal urgently needs to be reasonably resolved.
Jingqing Gao, Zhao Jie, Jingshen Zhang, Li Qiang, Jianlei Gao, Ming Cai, Jinliang Zhang   +6 more
semanticscholar   +1 more source

Phosphorus removal and recovery: state of the science and challenges

Environmental science and pollution research international, 2022
Mohammad Ali Zahed, S. Salehi, Yasaman Tabari, Hossein Farraji, Saba Ataei-Kachooei, A. Zinatizadeh, N. Kamali, Mohammad Mahjouri   +7 more
semanticscholar   +1 more source

Biological Phosphorus Removal, Its Role in Phosphorus Recycling

Environmental Technology, 1999
At present the main types of phosphorus removal from wastewater effluents are chemical precipitation using alum or lime and biological removal. These methods of removal do not recycle phosphorus as a truly sustainable product because it is removed along with various other waste products.
I. Stratful, S. Brett, M. B. Scrimshaw, J. N. Lester   +3 more
openaire   +1 more source

Stable nitrite accumulation and phosphorous removal from nitrate and municipal wastewaters in a combined process of endogenous partial denitrification and denitrifying phosphorus removal (EPDPR)

Chemical Engineering Journal, 2019
In this study, a novel process was developed by combining endogenous partial denitrification (EPD, NO3−-N → NO2−-N) with denitrifying phosphorus removal (DPR) in an anaerobic/anoxic/aerobic sequencing batch reactor (SBR) to achieve a stable nitrite ...
Xiaoxia Wang, Ji Zhao, Deshuang Yu, Guanghui Chen, Shiming Du, Jianyuan Zhen, Mengfei Yuan   +6 more
semanticscholar   +1 more source

A study of ferric-carbon micro-electrolysis process to enhance nitrogen and phosphorus removal efficiency in subsurface flow constructed wetlands

Chemical Engineering Journal, 2019
The application of subsurface-flow constructed wetlands (SSFCWs) has been restricted by the low nitrogen and phosphorus removal efficiency for several decades.
Youhao Shen, Lin-lan Zhuang, Jian Zhang, Jinlin Fan, Ting Yang, Shuo Sun   +5 more
semanticscholar   +1 more source

Cost-effective phosphorus removal from aqueous solution by a chitosan/lanthanum hydrogel bead: Material development, characterization of uptake process and investigation of mechanisms.

Chemosphere, 2021
K. Koh, Zhihao Chen, Sui Zhang, J. Chen
semanticscholar   +1 more source

A/O Phosphorus Removal Biotechnology

2010
Biological treatment systems accomplish phosphorus removal by using phosphorus for biomass synthesis during biochemical oxygen demand (BOD) removal. Phosphorus is an important element in microorganisms for energy transfer and for such cell components as phospholipids, nucleotides, and nucleic acids.
Nazih K. Shammas, Lawrence K. Wang
openaire   +1 more source

Biological Phosphorus Removal Processes

2010
Enhanced biological phosphorus removal (EBPR) processes developed for wastewater treatment are mainly based on the enrichment of activated sludge with phosphorus-accumulating organisms under alternative anaerobic–aerobic conditions. According to the literature information of the EBPR processes, this chapter attempts to review the biochemical models ...
Liu, Yong-Qiang, Liu, Yu, Tay, Joo-Hwa, Hung, Yung-Tse   +3 more
openaire   +2 more sources

Effect of Water Hardness on Phosphorus Removal in the Enhanced Biological Phosphorus Removal Process: Phosphorus Transformation and Microbial Mechanisms

Water hardness is a critical yet often overlooked parameter in enhanced biological phosphorus removal (EBPR). While divalent cations are known to influence chemical phosphorus removal, their impact on biological processes—especially microbial phosphorus transformation and feedback mechanisms—remains unclear. Therefore, four anaerobic/aerobic/anoxic(A/O/
Yujie Zhang, Jiawang Zhou, Wenhao Sun, Li kai, Ping Zhang, Xianwang Du, Han Wang, Zhi Yang   +7 more
openaire   +1 more source

Advanced nitrogen and phosphorus removal by combining endogenous denitrification and denitrifying dephosphatation in constructed wetlands.

Journal of Environmental Management, 2021
Hu Wu, Jie Wang, Jieyu Chen, Xiaoning Wang, Dapeng Li, Jie Hou, Xugang He   +6 more
semanticscholar   +1 more source