Recent Development in Ammonia Stripping Process for Industrial Wastewater Treatment

Kinidi, Lennevey; Tan, I.A.W.; Wahab, Noraziah Binti Abdul; Tamrin, Khairul Fikri; Hipólito, Cirilo Nolasco; Salleh, Shanti Faridah

doi:10.1155/2018/3181087

Cited by 120 publications

(83 citation statements)

References 62 publications

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“…Gas stripping is based on the principle of the mass transfer by which air or other inert gas is used to strip ammonia gas out of wastewater. Since a higher pH is required for efficient ammonia stripping, lime is usually used to increase the wastewater pH (Kinidi et al, 2018). In addition, electrodeionization (EDI) and solid oxide fuel cells (SOFCs) have also been explored for energy recovery from wastewater ammonia (Xu et al, 2017).…”

Section: Energy Recovery From Ammoniamentioning

confidence: 99%

Approaches to energy and resource recovery from municipal wastewater

Zhang¹

2020

A-B Processes: Towards Energy Self-Sufficient Municipal Wastewater Treatment

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The activated sludge process is regarded by many as a remarkable engineering development of the 20th Century which has made a great contribution to wastewater treatment. But after more than 100 years of successful application, the conventional activated sludge (CAS) process has recently been receiving an increasing number of critiques due to the high energy consumption and excessive sludge generation associated with it. Increasing efforts have been devoted to energy recovery in the form of biogas produced from waste sludge through anaerobic digestion (AD). However, the recoverable electrical energy generated from the AD of waste sludge can only offset about 50-60% of the total input energy of wastewater treatment plants (WWTPs) with CAS as the core process, while energy efficiency could be increased further to about 75% with upgraded AD equipped with pre-treatment of thickening sludge and a combined heat and power (CHP) process (Cao, 2011). Moreover, process upgrading and retrofitting are urgently needed in more and more WWTPs around the world to meet the tightened effluent discharge standards applied in recent years which inevitably lead to a rising trend of in-plant energy consumption. For example, it has been reported that the effluent discharge standards in China have been gradually migrated to quasi Class IV for surface water bodies with very low discharge limits. Consequently, it appears almost impossible or highly challenging to

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Section: Energy Recovery From Ammoniamentioning

confidence: 99%

Approaches to energy and resource recovery from municipal wastewater

Zhang¹

2020

A-B Processes: Towards Energy Self-Sufficient Municipal Wastewater Treatment

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“…Ammonia stripping is applied to liquids containing high concentrations of ammonia [24,25], and using this method up to 98% of the ammonia in the liquid can be removed in a given flow stream [25]. High temperature and pH increase efficiency of ammonia stripping since this leads to a larger fraction of N as gaseous ammonia.…”

Section: Potential Solutionsmentioning

confidence: 99%

Effectiveness of ecotechnologies for recovery of nitrogen and phosphorus from anaerobic digestate and effectiveness of the recovery products as fertilisers: a systematic review protocol

et al. 2019

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Background: The regular addition of plant-available nutrients such as nitrogen and phosphorus, either as manufactured fertilisers or animal manure, to agricultural soils is needed for global food security. Increased recycling of nutrients back to agriculture from organic waste streams is necessary for increased rural-urban sustainability. Anaerobic digestion of sewage sludge and agricultural wastes is widely applied to stabilize the substrate and also capture its energetic value via biogas production. The liquid phase of anaerobic digestate is a concentrated source of nutrients to which nutrient recovery technologies can be applied. Two such promising technologies that could increase nutrient recycling from e.g. wastewater and thereby contribute to environmental amelioration are struvite precipitation and ammonia stripping. By combining anaerobic digestion and nutrient recovery technologies on the digestate, a treatment process that provides both renewable energy and plant nutrients is achieved. This review will examine the effectiveness of ecotechnologies for the recovery and reuse of nitrogen and phosphorus from anaerobic digestate with the aim of reducing the impact of waste on the environment. Methods: We will search for both academic and grey literature published after 2013. English language searches will be performed in 4 bibliographic databases, and Google Scholar, while searches in 41 specialist websites will be performed in English, Finnish, Polish and Swedish. Eligibility screening will be conducted at two levels: title and abstract and full text. Included eligible studies will be subject to a critical appraisal that will assess external and internal study validity. We will extract information on study characteristics, intervention, comparators, effect modifiers, and measured outcomes. Data synthesis will involve narrative synthesis of each included study of sufficient validity. Quantitative synthesis (i.e. meta-analysis) may be possible in cases where a sufficient number of studies report similar types of outcomes.

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“…NH 3 was dissociated through the pores of the membranes sized between 0.1 and 5 µm [22,23]. Recently, an informative review on the development in ammonia stripping process was published by Kinidi et al [24]. For the biogas fermentation of high-ammonia substrates, thermophilic fermentation at 55 • C proved to be a better option as it did not result in such high inhibition as in the mesophilic process.…”

Section: Introductionmentioning

confidence: 99%

“…For the biogas fermentation of high-ammonia substrates, thermophilic fermentation at 55 • C proved to be a better option as it did not result in such high inhibition as in the mesophilic process. Temperature is of crucial importance as a higher temperature facilitates increased removal of NH 3 from liquid to biogas [23][24][25].…”

Section: Introductionmentioning

confidence: 99%

Effect of Pressure on the Removal of NH3 from Hydrolyzed and Pre-Fermented Slaughterhouse Waste for Better Biomethanization

Zver¹,

Bernik

Mihelič

2019

Energies

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Slaughterhouse waste (SW) is potentially a good source of biomethane; however, its excessive ammonia content quickly causes inhibition of microbial processes. Our aim was therefore to remove ammonia from SW before putting it into a biogas reactor. Experimental 120 L pressure container was constructed to observe NH3 removal from diluted slaughterhouse waste at constant air flow of 144 NL/min, temperature 130 °C, and at different pressures: 300 kPa, 600 kPa, and 900 kPa. SW was first allowed to hydrolyze for 14 days at 38 °C. The SW was diluted with water (DSW) to 8.4% dry matter (DM) and forcibly aerated for 334 min. From the DSW, 0.7%, 3.8%, and 9% of initial total N were removed at 300 kPa, 600 kPa, and 900 kPa, respectively. However, the C/N ratio changed only slightly, from the initial 4.38 to 3.17, which is not a promising result for biomethanization. Further research on the presented system with the addition of bases might be promising to remove more ammonia.

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Recent Development in Ammonia Stripping Process for Industrial Wastewater Treatment

Cited by 120 publications

References 62 publications

Approaches to energy and resource recovery from municipal wastewater

Approaches to energy and resource recovery from municipal wastewater

Effectiveness of ecotechnologies for recovery of nitrogen and phosphorus from anaerobic digestate and effectiveness of the recovery products as fertilisers: a systematic review protocol

Effect of Pressure on the Removal of NH3 from Hydrolyzed and Pre-Fermented Slaughterhouse Waste for Better Biomethanization

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