Algal-bacterial aerobic granule based continuous-flow reactor with effluent recirculation instead of air bubbling: Stability and energy consumption analysis

Ahmad, Johan Syafri Mahathir; Zhao, Ziwen; Zhang, Zhenya; Shimizu, Kazuya; Utsumi, Motoo; Lei, Zhongfang; Lee, Duu-Jong; Tay, Joo‐Hwa

doi:10.1016/j.biteb.2019.100215

Cited by 10 publications

(3 citation statements)

References 18 publications

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“…In the take-off phase, the arms and the free leg should rotate and swing upward, and the body will rotate slightly accordingly. However, the center of gravity should not rush forward too much, which will cause a loss of speed and rotation energy [18][19][20].…”

Section: Plos Onementioning

confidence: 99%

The analysis of infrared high-speed motion capture system on motion aesthetics of aerobics athletes under biomechanics analysis

Qiu,

Guan,

Liu

2023

PLoS ONE

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This paper uses an infrared high-speed motion capture system based on deep learning to analyze difficult movements, which helps aerobics athletes master difficult movements more accurately. Firstly, changes in joint angle, speed of movement, and ground pressure are used to analyze the impact and role of motion fluency and completion based on a biomechanical perspective. Moreover, based on the existing infrared high-speed motion capture systems, the Restricted Boltzmann Machine (RBM) model is introduced to construct an unsupervised similarity framework model. Next, the motion data is reorganized based on three-dimensional information to adapt to the model’s input. Then, the framework performs similar frame matching to obtain a set of candidate frames that can be used as motion graph nodes. After the infrared high-speed motion capture system and inertial sensors are simultaneously applied to subjects, the multi-correlation coefficients (CMC) values of the hip, knee, and ankle angles are 0.94 ± 0.06, 0.98 ± 0.01, and 0.87 ± 0.09, respectively. The two systems show a high degree of correlation in the measurement results, and the knee joint is the most significant correlation. Finally, a motion graph is constructed to control its trajectory and adjust its motion pattern. The infrared high-speed motion capture system optimized for deep learning can extract features from human bone data and capture motion more accurately, helping trainers to fully understand difficult movements.

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Section: Plos Onementioning

confidence: 99%

The analysis of infrared high-speed motion capture system on motion aesthetics of aerobics athletes under biomechanics analysis

Qiu,

Guan,

Liu

2023

PLoS ONE

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“…energi untuk hkan Sedangkan Sewon, di terpusat IPAL pada pada aerasi proses menggunakan Bantul kolam fakultatif. Dari studi terdahulu yang sudah dilakukan (Ahmad et al, 2017(Ahmad et al, , 2019, penghematan energi di IPAL dapat dilakukan salah satunya dengan strategi intermittent aeration secara dengan aerasi dibandingkan menerus (24 jam) dikarenakan pada intermittent aeration terdapat periode dimana aerasi tidak dilakukan sehingga penggunaan total energi dapat lebih rendah. Dari tangki aerasi 1 air limbah mengalir secara gravitasi ke tangki aerasi 2 dan tangki pengendap akhir (volume masing-masing 1.050 l).…”

Section: Pendahuluanunclassified

Stabilitas Performa Dan Realibilitas Ipal Domestik Dengan Kombinasi Aerasi Secara Intermittent Dengan Resirkulasi Efluen Dan Microbubble Generator

Ahmad¹,

Putri²,

Santoni³

et al. 2021

FROPIL (Forum Profesional Teknik Sipil)

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Berbagai macam teknologi telah diterapkan pada Instalasi Pengolahan Air Limbah (IPAL) domestik, namun tidak diketahui secara pasti realibitas dan kinerjanya. Penelitian ini membahas tentang realibilitas IPAL di Bulaksumur Residence untuk pemenuhan standar kualitas efluen jika efluen akan dibuang langsung ke lingkungan dan standar kualitas air kelas 4 jika efluen IPAL akan digunakan sebagai air penyiraman taman. IPAL beroperasi secara kontinyu dan kinerja IPAL diamati selama 82 hari. IPAL menggunakan sistem aerasi intermittent dengan memanfaatkan resirkulasi air limbah dengan pemasangan microbubble generator menunjukkan performa yang baik dan stabil. Efisiensi removal TSS, COD, PO4-P dan TN berturut-turut sebesar 68,9±12,9%, 78,4±9,8%, 45,3±8,6% dan 63,4±13,7%. Performa yang sangat baik juga terlihat pada efisiensi nitritasi, nitratasi dan denitrifikasi berturut-turut sebesar 83,1±7,9%, 97,6±2,0% dan 67,2±19,3%. Kualitas efluen untuk parameter TSS (4,6±3,4 mg/l), COD (13,9±6,6 mg/l) dan NH3-N (2,4±2,4 mg/l) menunjukkan realitibitas 100% baik untuk memenuhi standar kualitas air efluen maupun air kelas 4. Begitu pula untuk NO3-N (2,8±0,5 mg/l) juga menunjukkan realibilitas 100% untuk memenuhi standar kualitas air kelas 4. Sedangkan untuk NH3-N (2,4±2,4 mg/l) dan NO2-N (0,22±0,99) hanya menunjukkan realibilitas sebesar masing-masing 8,3%.

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“…In addition, the algal-bacterial granular sludge is compact and conducive to the separation of sludge and water. Theoretically, no clarifier is required due to excellent settlement performance of algal-bacterial granular sludge, thus significantly saving the footprint (Ahmad et al, 2019). Therefore, algal-bacterial granular sludge technology is expected to become a green, costeffective, energy-efficient and land-saving wastewater treatment method (Zhang et al, 2020(Zhang et al, , 2021.…”

Section: Introductionmentioning

confidence: 99%

Cultivation of algal‐bacterial granular sludge and degradation characteristics of tetracycline

Wang

Zhang

et al. 2023

Water Environment Research

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Due to the increasing use of antibiotics, tetracycline was frequently detected in wastewater. As a novel technology, algal‐bacterial granular sludge process is expected to be widely used in wastewater treatment. However, the degradation effect of tetracycline by algal‐bacterial granular sludge process and its degradation path is still unknown. In this study, mature and stable algal‐bacterial granular sludge was cultured and the degradation of tetracycline by it was investigated. The results showed that the removal amount of 1–25 mg/L tetracycline by algal‐bacterial granular sludge was 0.09–1.45 mg/g volatile suspended solids (VSS), in which the adsorption amount was 0.06–0.17 mg/g VSS and the degradation amount was 0.03–1.27 mg/g VSS. Tetracycline biosorption was dominant at its concentration of 1–3 mg/L, while biodegradation was predominant at 5–25 mg/L of tetracycline. At tetracycline concentration of 3–5 mg/L, the contribution of biosorption and biodegradation to tetracycline removal by algal‐bacterial granular sludge process was almost equal. Algal‐bacterial granular sludge could effectively degrade tetracycline through demethylation, dehydrogenation, deacylation, and deamination or their combination. In addition, the degradation products were nontoxic and hardly pose a threat to environmental health. The research results of this paper provide a solid theoretical basis for tetracycline removal by algal‐bacterial granular sludge and a reference for the development of algal‐bacterial granular sludge process for wastewater treatment in the presence of tetracycline. Practitioner points Mature and stable algal‐bacterial granular sludge was cultured. Tetracycline was removed by algal‐bacterial granular sludge through biosorption and biodegradation. Algal‐bacterial granular sludge could degrade tetracycline through demethylation, dehydrogenation, deacylation, and deamination or their combination. The degradation products were nontoxic.

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Algal-bacterial aerobic granule based continuous-flow reactor with effluent recirculation instead of air bubbling: Stability and energy consumption analysis

Cited by 10 publications

References 18 publications

The analysis of infrared high-speed motion capture system on motion aesthetics of aerobics athletes under biomechanics analysis

The analysis of infrared high-speed motion capture system on motion aesthetics of aerobics athletes under biomechanics analysis

Stabilitas Performa Dan Realibilitas Ipal Domestik Dengan Kombinasi Aerasi Secara Intermittent Dengan Resirkulasi Efluen Dan Microbubble Generator

Cultivation of algal‐bacterial granular sludge and degradation characteristics of tetracycline

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