Acidic hydrothermal treatment: Characteristics of organic, nitrogen and phosphorus releasing and process optimization on lincomycin removal from lincomycin mycelial residues

Wang, Mengmeng; Zhang, Bo; Cai, Chen; Xin, Yanjun; Liu, Huiling

doi:10.1016/j.cej.2017.12.041

Cited by 50 publications

(7 citation statements)

References 35 publications

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“…Begitu juga dengan fosfor (P) yang jumlahnya semakin menurun ketika waktu proses semakin lama. Hal ini sesuai dengan penelitian yang dilakukan oleh Wang, M. et al yang menunjukkan penurunan jumlah N dan P saat waktu tinggal ditambah (23) . Berdasarkan data tersebut dapat diketahui bahwa proses hidrotermal cukup efektif meningkatkan jumlah N+P2O5+K2O dengan menjaga lama waktu proses.…”

Section: Analisis Produk Hidrotermalunclassified

Teknologi Hidrotermal Sebagai Solusi Cepat Pengolahan Sampah Organik Menjadi Pupuk

et al. 2020

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Geostech Building, as an office and laboratory facility, requires a source of clean water from groundwater related to the limited supply of clean water from the PDAM. Due to the needs of freshwater from groundwater origin, data and information are needed regarding the potential groundwater in the area, including aquifer configuration, depth, and groundwater potential. The presence of groundwater is not distributed through every area, and it's related to the geological and geohydrological conditions. One of the geophysical methods that can describe subsurface is 2D geoelectric methods. This method can distinguish and analyze rock types, geological structures, groundwater aquifers, and other important information based on the characteristics of the electricity of rocks by looking at the value of the type of resistance. In this measurement, the Wenner Alpha configuration has been used, where the arrangement of A-B current electrodes and M-N potential electrodes have constant spacing. From the measurement results, it can be interpreted that there is a low resistivity layer containing porous groundwater as an aquifer. Based on regional geological data, it has been estimated that this layer is in the form of sandy tuff (0-1.5 ohm-m). The exploitation of groundwater with drilling is expected to reach the aquifer's upper layer at depth, starting from 11.5-13 meters. The groundwater aquifer thickness cannot be ascertained because of the penetration of the lower depth of 2D geoelectric measurements truncated by the constraint of a maximum stretch of cable. The upper layer of the aquifer contains a turned layer of fine tufa and medium tuff, which is impermeable, coarse tuff, and mixed soil with varying thickness at the upper layer.Keywords: 2D geoelectric, aquifer, potential groundwater, Geostech ABSTRAKGedung Geostech sebagai sarana perkantoran dan laboratorium memerlukan sumber air bersih dari airtanah terkait dengan terbatasnya suplai air bersih dari PDAM. Kebutuhan air bersih berasal dari airtanah, maka diperlukan data dan informasi mengenai kondisi potensi airtanah di kawasan tersebut termasuk konfigurasi akuifer, kedalaman, dan potensi airtanahnya. Keberadaan airtanah tidaklah merata untuk setiap tempat dan sangat terkait dengan kondisi geologi dan geohidrologinya. Salah satu metode geofisika yang dapat memberikan gambaran kondisi bawah permukaan adalah dengan metode geolistrik 2D. Metode ini dapat membedakan dan menganalisis jenis batuan, struktur geologi, akuifer airtanah, dan informasi penting lainnya berdasarkan sifat kelistrikan batuan dengan melihat nilai tahanan jenisnya. Dalam pengukuran ini digunakan konfigurasi Wenner Alpha, dimana susunan elektroda arus A dan B dan elektroda potensial M dan N mempunyai spasi yang konstan. Dari hasil pengukuran dapat diinterpretasikan adanya lapisan dengan resistivitas rendah yang mengandung airtanah dan bersifat porous sebagai akuifer. Berdasarkan data geologi regional diperkirakan lapisan ini berupa tuf pasiran (0-1,5 ohm-m). Pengambilan airtanah dengan pemboran diperkirakan akan mengenai batas atas lapisan akuifer pada kedalaman 11,5-13 meter. Ketebalan akuifer airtanah tidak bisa dihitung karena penetrasi kedalaman pengukuran geolistrik 2D terbatasi oleh bentangan elektroda di permukaan. Lapisan di atas akuifer merupakan lapisan selang-seling tuf halus dan tuf sedang yang kedap air, tuf kasar, dan pada bagian paling atas merupakan tanah urugan dengan ketebalan bervariasi.Kata kunci: Geolistrik 2D, akuifer, potensi airtanah, Geostech

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Section: Analisis Produk Hidrotermalunclassified

Teknologi Hidrotermal Sebagai Solusi Cepat Pengolahan Sampah Organik Menjadi Pupuk

et al. 2020

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“…The concentration of ammonia is typically much higher than that of orthoP in the process water. 29 For instance, the molar ratio of ammonia/orthoP in process waters derived from HT of ADS at 160−250 °C (0.5 h) reaches 51−66. 33 Thus, a large Various technologies, including air stripping, forward osmosis, ion exchange, and electrodialysis, have been evaluated to recover ammonia from wastewaters.…”

Section: ■ Introductionmentioning

confidence: 99%

“…Meanwhile, the HT process water contains high concentrations of orthoP and ammonia, serving as another potential source for the recovery of P and N. − HT degrades organic P and desorbs orthoP from biomass and minerals surfaces, releasing a portion of the orthoP into the process water. , NH 3 serves as the major nitrogenous gas during HT, which can be quickly dissolved in the process water . Precipitation of struvite (MgNH 4 PO 4 ·6H 2 O, a slow release fertilizer) is widely used to recover orthoP and ammonia from process water, which is a convenient and effective method for achieving high levels of P recovery .…”

Section: Introductionmentioning

confidence: 99%

“…Precipitation of struvite (MgNH 4 PO 4 ·6H 2 O, a slow release fertilizer) is widely used to recover orthoP and ammonia from process water, which is a convenient and effective method for achieving high levels of P recovery . Struvite precipitation requires the presence of orthoP, ammonia, and Mg 2+ at stoichiometric ratio and an optimal pH range of 8–10, as described by the following equation: The concentration of ammonia is typically much higher than that of orthoP in the process water . For instance, the molar ratio of ammonia/orthoP in process waters derived from HT of ADS at 160–250 °C (0.5 h) reaches 51–66 .…”

Section: Introductionmentioning

confidence: 99%

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Transformation Kinetics of Phosphorus and Nitrogen in Iron-Rich Sewage Sludges during Hydrothermal Treatment and Recovery of Nutrients from Process Water

Wang

Jung

Wan

et al. 2021

ACS Sustainable Chem. Eng.

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Hydrothermal treatment (HT) is an emerging technique for sustainable sewage sludge management and resource recovery. Many sludges are rich in iron (Fe) due to the common addition of Fe salts in water resource recovery facilities. To develop guidance for reaction conditions targeting nutrient recovery, this study systematically investigated the influence of HT temperature, treatment time, and sludge source on the dynamic speciation evolution of phosphorus (P) and nitrogen (N) during HT of Fe-rich sewage sludge. Complementary chemical extraction and X-ray spectroscopy analyses were conducted to characterize the treatment products. For the sludge mixture (a blend of primary and waste activated sludges), P speciation did not change significantly within 4.5 h at 125 °C HT, while soluble and labile P was converted into insoluble P over time at 175 and 225 °C HT. Strengite (FePO4·2H2O) preferentially formed in the hydrochars with increasing treatment temperature and/or time, whereas 125 °C HT within 1.5 h favored the formation of vivianite (Fe3(PO4)2·8H2O). Organic P was completely decomposed into orthophosphate when the HT temperature reached up to 175 °C. Pyrrole-N was enriched in the hydrochars. Similar reaction pathways were observed during HT of anaerobically digested sludge, though some minor differences in Fe-associated P and organic P were observed. Meanwhile, HT of the two sludges released orthophosphate and ammonia into the process waters at 175 and 225 °C, which can be recovered by a sequential process involving struvite (MgNH4PO4·6H2O) precipitation and air stripping. This study provides new insights into the transformation of P and N during HT of Fe-rich sludges as well as a modular design for maximum P and N recovery from the treatment products.

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“…Hydrothermal technology is one of the most promising pretreatment methods for EFD as it is highly efficient at antibiotic elimination and is environmentally friendly (Wang et al, 2018a). In addition, this technology could destroy floc structure and microbial cell walls, making refractory organic matters available for AD (Wang et al, 2018a). As reported, the hydrothermal temperature is the most important factor affecting pretreatment performance (Chen et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Effect of Hydrothermal Pretreatment on Anaerobic Digestion of Erythromycin Fermentation Dregs: Biogas Production, Antibiotic Resistance Gene Evolution, and Microbial Community Dynamics

Kuang

Wang

2022

Front. Environ. Sci.

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The utilization of erythromycin fermentation dregs (EFD), one kind of solid biowaste, is limited due to the high-level residue of antibiotics. Hydrothermal pretreatment (HT) has great potential to remove residual antibiotics. However, its harmless performance and influence on the EFD anerobic digestion (AD) process remains unclear. In this study, HT was conducted for erythromycin removal before EFD AD with the temperature ranging from 80 to 180°C. Moreover, changes in biogas yield, antibiotic resistance genes (ARGs), and microbial communities in the EFD AD process were compared among different treatments. The results showed that under the optimal hydrothermal temperature of 160°C, more than 85% of erythromycin was eliminated. In addition, HT significantly reduced the ARGs in the EFD AD process and ermT and mefA relative abundance decreased by one order of magnitude. Mobile genetic elements (IntI1 and Tn916/1545) also showed decreased tendency with the hydrothermal temperature elevation. The maximum methane production of 428.3 ml g−1 VS was obtained in the AD system of EFD with hydrothermal treatment at 160°C. It is attributed to the cooperation of hydrolysis and acidogenesis bacteria (e.g., Aminicenantales and Sedimentibacter) and methylotrophic methanogens (Candidatus_Methanofastidiosum and Methanosarcina), and they presented the highest relative abundance in this group. The results indicated that methylated substance reduction was the major methanogenesis route. Hydrothermal technology was of great potential to realize the harmless treatment of EFD and for recycling EFD via AD.

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Acidic hydrothermal treatment: Characteristics of organic, nitrogen and phosphorus releasing and process optimization on lincomycin removal from lincomycin mycelial residues

Cited by 50 publications

References 35 publications

Teknologi Hidrotermal Sebagai Solusi Cepat Pengolahan Sampah Organik Menjadi Pupuk

Teknologi Hidrotermal Sebagai Solusi Cepat Pengolahan Sampah Organik Menjadi Pupuk

Transformation Kinetics of Phosphorus and Nitrogen in Iron-Rich Sewage Sludges during Hydrothermal Treatment and Recovery of Nutrients from Process Water

Effect of Hydrothermal Pretreatment on Anaerobic Digestion of Erythromycin Fermentation Dregs: Biogas Production, Antibiotic Resistance Gene Evolution, and Microbial Community Dynamics

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