Enhancing biological nitrogen removal of slaughterhouse and meat processing wastewater in three-stage AO process by influent allocation: From lab-scale to full-scale investigation

Separation and Purification Technology, Год журнала: 2024, Номер 354, С. 129159 - 129159

Опубликована: Авг. 10, 2024

Язык: Английский

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Self-enriching anammox bacteria and in situ establishing anammox process in traditional wastewater treatment system

Journal of Water Process Engineering, Год журнала: 2024, Номер 68, С. 106503 - 106503

Опубликована: Ноя. 11, 2024

Язык: Английский

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Enhanced removal of nitrogen and phosphorus from expressway service area wastewater using step-feed multi-stage Anoxic/Oxic membrane bioreactor optimization process

Journal of Water Process Engineering, Год журнала: 2024, Номер 69, С. 106769 - 106769

Опубликована: Дек. 10, 2024

Язык: Английский

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Innovative inbuilt moving bed biofilm reactor for nitrogen removal applied in household aquarium

Frontiers in Microbiology, Год журнала: 2024, Номер 15

Опубликована: Апрель 9, 2024

An innovative inbuilt moving bed biofilm reactor (MBBR) was created to protect fish from nitrogen in a household aquarium. During the 90 experimental days, ammonia (NH

Язык: Английский

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Enhancing Biological Nitrogen Removal of Slaughterhouse and Meat Processing Wastewater in Three-Stage Ao Process by Influent Allocation: From Lab-Scale to Full-Scale Investigation

Опубликована: Янв. 1, 2024

Three-stage anoxic/aerobic (AO) process is promising for efficient nitrogen removal from high-strength wastewater. Herein, the effects of influent allocation modes (50/40/10 vs. 50/25/25) on performance treating slaughterhouse and meat processing wastewater (SMPW) were investigated lab-scale to full-scale three-stage AO processes. Compared 50/25/25 (94.1%), mode 50/40/10 achieved a higher 97.7% better adaptability ammonia load. The second anoxic tank contributed highest TN in system with 50/40/10, while simultaneous nitrification-denitrification aerobic denitrification thrid oxic effectively enhanced efficiency. Microbial community analysis revealed that SMPW treatment systems tended enrich lipolytic bacteria (Pseudomonas Bacillus), cellulolytic (Christensenellaceae_R-7_group), proteolytic (Proteiniclasticum, Planococcus, OLB8), denitrifying glycogen accumulating (Candidatus_Competibacter), antibiotic-resistant (Rheinheimera). Meanwhile, inherent nature promoted an increase dissimilatory nitrate reduction ammonium pathway, abundant complex organic substances environment ensured removal. had no significant effect nitrification process, but obviously enriched nitrous oxide reductase encoded by gene nosZ, which reduced carbon emission. reliability was verified 35,000 m3/d plant, effluent compliance stable operation within 48 days. This study provides valuable reference effective regulation SMPW.

Язык: Английский

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A Comprehensive Review on the Biofilm‐Mediated Removal of Nitrogen and Chemical Oxygen Demand From Different Wastewater Sources

CLEAN - Soil Air Water, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 7, 2024

ABSTRACT Discharging effluents with high chemical oxygen demand (COD) and nitrogen content into the environment threatens human aquatic life. An increase in load results depletion of dissolved (DO), eutrophication, ecological stress, biodiversity loss. Intake water containing excess nitrate can cause different diseases. Conventional physicochemical removal techniques are expensive also generate secondary pollutants. In contrast, biological methods offer effective economical outcomes global acceptance. Biofilm‐based have advantages low space requirement, resistance toward toxic shocks, absence sludge backflow. The carriers used biofilm reactors allow growth heterogeneous microbial consortia, which simultaneously remove COD, nitrogenous compounds, phosphates. This review aims to summarize individual lab‐scale research this area, critically analyze scientific findings, understand gap. nitrification–denitrification anammox often been replaced by more efficient approaches such as simultaneous nitrification–denitrification, partial nitritation anammox, nitrification, denitrification. Multistage moving bed specially designed step feeding for complete removal. Through a sequencing batch reactor, rate denitrification could be obtained, whereas using membrane bioreactor resulted almost nitrogen. We expect that will provide direction designing experiments on enhanced COD from wastewater sources biofilms.

Язык: Английский

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Effect of metal ions on moving bed biofilm reactor (MBBR) for nitrogen removal in wastewater: Performance characteristics, flocculation efficiency and bacterial community

Environmental Research, Год журнала: 2024, Номер 267, С. 120655 - 120655

Опубликована: Дек. 17, 2024

Язык: Английский

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