Nutrient removal from digested swine wastewater by combining ammonia stripping with struvite precipitation

Cao, Leipeng; Wang, Jingjing; Xiang, Shuyu; Huang, Zhenghua; Ruan, Roger; Liu, Yuhuan

doi:10.1007/s11356-019-04153-x

Cited by 72 publications

(21 citation statements)

References 39 publications

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“…Concentration of total phosphorous was reduced to 114 mg L −1 from initial value of 380 mg L −1 (67% reduction) while magnesium content was reduced to 37 mg L −1 from initial value of 75 mg L −1 (26% reduction) ( Table 4 ). Although it does not reach the reduction level as reported by previous researchers ( Abel-Denee et al., 2018 ; Cao et al., 2019 ; Xu et al., 2016 ; Wilsenach et al., 2007 ), this result implied that the reactive crystallization works well with POME in reducing the elements that will subsequently form struvite naturally in the wastewater, thus reducing the magnitude of the problem of struvite formation in POME treatment pipelines. The experiment was done assuming the temperature and pH were constant at 30 °C and at pH of 10.…”

Section: Resultscontrasting

confidence: 69%

Investigation of struvite crystals formed in palm oil mill effluent anaerobic digester

Ngatiman

Jami

Bakar

et al. 2021

Heliyon

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Section: Resultscontrasting

confidence: 69%

Investigation of struvite crystals formed in palm oil mill effluent anaerobic digester

Ngatiman

Jami

Bakar

et al. 2021

Heliyon

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“…Previously, it was indicated that nitrogen removal may be accelerated as the temperature increases [ 35 , 36 ]. Other researchers [ 37 , 38 ] also reported similar results at high pH (pH range 10.5–11) and high temperature (40–80 °C) [ 39 ]. Although ammonia gas stripping by controlling pH and temperature is the most widely used AOP for nitrogen removal from wastewater, when reactive chemical species from NTP are abundant, another possible mechanism for TN removal may be partial selective catalytic oxidation/reduction reactions (SCR/SCO) or wet oxidation [ 23 ].…”

Section: Resultssupporting

confidence: 58%

Optimized Pretreatment of Non-Thermal Plasma for Advanced Sewage Oxidation

Kim

Won

Kim

2020

IJERPH

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This study investigates how the non-thermal plasma (NTP) process leads to advanced oxidation of sewage using response surface methodology. For environmentally viable and efficient operation of the NTP process, temperature and contact time were selected as two important independent variables. Their impacts on the performance were tested following an experimental design to figure out optimal operating conditions. Based on obtained treatment efficiency, statistically optimized conditions were derived by using an approach adapting the central composite design. Results show that coupling 40 °C of temperature and 4 h of contact time demonstrate optimal performance for total chemical oxygen demand (TCOD, 59%) and total suspended solids (85%), respectively. This implies that NTP may present efficient particulate destruction leading to organic solids dissolution. Statistical analysis reveals that the contact time shows more significant dependency than the temperature on the advanced oxidation of TCOD, possibly due to dissolved organic material. For total nitrogen removal, on the contrary, the optimal efficiency was strongly related to the higher temperature (~68 °C). This work provides an inroad to considering how NTP can optimally contribute to better oxidation of multiple pollutants.

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“…Most of the nitrogen removal processes that have been developed for municipal and industrial wastewaters have been applied to animal wastes too, such as biological nitrogen removal [16], ammonia stripping [17], ion exchange [18], and struvite crystallization [19]. Among the nitrogen removal processes above, ammonia stripping is widely used due to its simplicity and lower costs [20]. Ammonia stripping is a simple desorption process used to remove the ammonia from the waste material.…”

Section: Introductionmentioning

confidence: 99%

“…In conventional ammonia stripping, an alkali is added to the manure or wastewater to raise the pH [20], it converts ammonium ions to ammonia gas according to Equation (1):…”

Section: Introductionmentioning

confidence: 99%

The Influence of Alkalization and Temperature on Ammonia Recovery from Cow Manure and the Chemical Properties of the Effluents

2019

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Manure is a substantial source of ammonia volatilization into the atmosphere before and after soil application. The purpose of the study was to investigate the effects of temperature and alkalization treatments on the release of ammonia and ammonia recovery (AR) from cow manure and to characterize the chemical properties of the resultant effluents. In a closed glass reactor, 100 g of fresh cow manure was mixed with 100 mL of deionized water and the mixture was treated with various volume of KOH to increase the manure pH to 7, 9, and 12. Ammonia was distilled from the mixture at temperatures of 75, 85, 95, and 100 °C for a maximum of 5 h. Ammonia was received as diluted boric and sulfuric acids. Results indicated that the highest ammonia recovery was 86.3% and 90.2%, which were achieved at a pH of 12 and temperatures of 100 and 95 °C, respectively. The recovered ammonia in boric acid was higher than in sulfuric acid, except at a pH of 12 and temperatures of 95 and 100 °C. The effluents, after ammonia was removed, showed that the variation in pH ranged between 6.30 and 9.38. The electrical conductivity ranged between 4.5 and 9. (dS m−1) and total potassium ranged between 9.4 and 57.2 mg kg−1.

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Nutrient removal from digested swine wastewater by combining ammonia stripping with struvite precipitation

Cited by 72 publications

References 39 publications

Investigation of struvite crystals formed in palm oil mill effluent anaerobic digester

Investigation of struvite crystals formed in palm oil mill effluent anaerobic digester

Optimized Pretreatment of Non-Thermal Plasma for Advanced Sewage Oxidation

The Influence of Alkalization and Temperature on Ammonia Recovery from Cow Manure and the Chemical Properties of the Effluents

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