Ammonia gas treatment in low cost biological reactor

B. Lew; A. Meir; A. A. Khan; M. A. Khan; S. Tarre; M. Green

doi:10.1016/j.biortech.2023.129949

Ammonia gas treatment in low cost biological reactor

B. Lew, A. Meir, A. A. Khan, M. A. Khan, S. Tarre, M. Green

Research output: Contribution to journal › Article › peer-review

Abstract

Ammonia gas contributes to a number of environmental and human health concerns. The use of chalk, a cheap alkalinity source may reduce costs for biological systems. This research studies a closed liquid flow reactor to treat ammonia gas using chalk as biomass media and alkalinity source with high value calcium nitrate fertilizer production. The proposed reactor showed complete ammonia gas removal at high rate (500 mg N/L/day) and with low cost; where chalk dissolution and ammonia gas absorption contributed to alkalinity in the water for nitrification. High calcium ion concentration (up to 10,000 mg Ca²⁺ as CaCO₃/L) showed only minor effects on ammonia absorption and nitrification rate.

Original language	English
Article number	129949
Journal	Bioresource Technology
Volume	391
DOIs	https://doi.org/10.1016/j.biortech.2023.129949
State	Published - Jan 2024
Externally published	Yes

Keywords

Ammonia alkalinity
Chalk alkalinity
Gas treatment
Nitrification at low pH

ASJC Scopus subject areas

Bioengineering
Environmental Engineering
Renewable Energy, Sustainability and the Environment
Waste Management and Disposal

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.biortech.2023.129949

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title = "Ammonia gas treatment in low cost biological reactor",

abstract = "Ammonia gas contributes to a number of environmental and human health concerns. The use of chalk, a cheap alkalinity source may reduce costs for biological systems. This research studies a closed liquid flow reactor to treat ammonia gas using chalk as biomass media and alkalinity source with high value calcium nitrate fertilizer production. The proposed reactor showed complete ammonia gas removal at high rate (500 mg N/L/day) and with low cost; where chalk dissolution and ammonia gas absorption contributed to alkalinity in the water for nitrification. High calcium ion concentration (up to 10,000 mg Ca2+ as CaCO3/L) showed only minor effects on ammonia absorption and nitrification rate.",

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AU - Lew, B.

AU - Meir, A.

AU - Khan, A. A.

AU - Khan, M. A.

AU - Tarre, S.

AU - Green, M.

PY - 2024/1

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N2 - Ammonia gas contributes to a number of environmental and human health concerns. The use of chalk, a cheap alkalinity source may reduce costs for biological systems. This research studies a closed liquid flow reactor to treat ammonia gas using chalk as biomass media and alkalinity source with high value calcium nitrate fertilizer production. The proposed reactor showed complete ammonia gas removal at high rate (500 mg N/L/day) and with low cost; where chalk dissolution and ammonia gas absorption contributed to alkalinity in the water for nitrification. High calcium ion concentration (up to 10,000 mg Ca2+ as CaCO3/L) showed only minor effects on ammonia absorption and nitrification rate.

AB - Ammonia gas contributes to a number of environmental and human health concerns. The use of chalk, a cheap alkalinity source may reduce costs for biological systems. This research studies a closed liquid flow reactor to treat ammonia gas using chalk as biomass media and alkalinity source with high value calcium nitrate fertilizer production. The proposed reactor showed complete ammonia gas removal at high rate (500 mg N/L/day) and with low cost; where chalk dissolution and ammonia gas absorption contributed to alkalinity in the water for nitrification. High calcium ion concentration (up to 10,000 mg Ca2+ as CaCO3/L) showed only minor effects on ammonia absorption and nitrification rate.

KW - Ammonia alkalinity

KW - Chalk alkalinity

KW - Gas treatment

KW - Nitrification at low pH

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Ammonia gas treatment in low cost biological reactor

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

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