• Process optimization and effect of thermal, alkaline, H

    Author: Salar Siami, Behnoush Aminzadeh, Razieh Karimi, Seyed Mostafa Hallaji
  • Optimization of alkaline hydrothermal pretreatment of ...

    Cited by: 1
  • Optimization of Sludge Dewatering Through

    Cited by: 13
  • Optimization of a thermal hydrolysis process for

    The best sludge solubilization achieved was 41.3% under pretreatment condition of 198 °C and 4 min. Biogas production was enhanced with the improved sludge solubilization, and a linear ...

  • Optimization of Sludge Dewatering Through

    Optimization of Sludge Dewatering Through Pretreatment, Equipment Selection, and Testing Article in Drying Technology 31(2) January 2013 with 97 Reads How we measure 'reads'

  • Optimizing pre-treatment conditions for anaerobic co ...

    Cited by: 1
  • OPTIMIZATION OF THE EFFICACY OF SLUDGE

    and sludge characteristics (sludge type, volume of sludge, total solids concentration, pH). The research is a prerequisite for optimization of sludge ultrasonic pretreatment efficiency in lab-scale and practical application. Keywords: cavitation, Combined pretreatment, Optimization process, Ultrasonic pretreatment, Waste activated sludge 1.

  • Co-evolution of iron, phosphorus, and sulfur

    2020-6-15  Anaerobic digestion (AD) with hydrothermal (HT) pretreatment is an emerging technology for enhanced resource recovery from sewage sludge. This study investigated the speciation of Fe, P, and S during sequential HT-AD treatment of sewage sludge using sequential chemical extraction, X-ray diffraction, and X-ray absorption spectroscopy. Results suggested strong correlations between Fe and

  • Process optimization and effect of thermal, alkaline,

    Author: Salar Siami, Behnoush Aminzadeh, Razieh Karimi, Seyed Mostafa Hallaji
  • Coagulation/flocculation optimization and sludge ...

    2018-11-12  This study examined the optimization of paint industry wastewater pre-treatment by means of coagulation and the quantity of produced sludge generated. In preliminary tests, high concentrations of alum, PACI, and FeCl 3 were used, and removal efficiencies were determined to be 86–88%, 100%, and 46–72% for chemical oxygen demand (COD), SS ...

  • Optimization of Sludge Dewatering Through

    2018-6-17  (2013). Optimization of Sludge Dewatering Through Pretreatment, Equipment Selection, and Testing. Drying Technology: Vol. 31, Special Issue on Dewatering of Wet Materials, pp. 193-201.

  • Optimization of a thermal hydrolysis process for

    2017-5-1  Optimization of a thermal hydrolysis process for sludge pre-treatment. Sapkaite I(1), Barrado E(2), Fdz-Polanco F(1), Pérez-Elvira SI(3). Author information: (1)Department of Chemical Engineering and Environmental Technology, University of Valladolid, Spain. (2)Department of Analytical Chemistry, University of Valladolid, Spain.

  • OPTIMIZATION OF THE EFFICACY OF SLUDGE

    and sludge characteristics (sludge type, volume of sludge, total solids concentration, pH). The research is a prerequisite for optimization of sludge ultrasonic pretreatment efficiency in lab-scale and practical application. Keywords: cavitation, Combined pretreatment, Optimization process, Ultrasonic pretreatment, Waste activated sludge 1.

  • Optimization of Anaerobic Digestion of Sewage Sludge

    The sludge used in the study Both of the primary sludge and the waste activated sludge used in this study were obtained from Lundtofte Wastewater Treatment Plant, Lyngby, Denmark. Immediately after sampling, the sludges were dispensed into 500 ml plastic bags, and then stored at -20oC. Each day, a required portion of the sludge was thawed at room

  • Coagulation/flocculation optimization and sludge ...

    2018-11-12  This study examined the optimization of paint industry wastewater pre-treatment by means of coagulation and the quantity of produced sludge generated. In preliminary tests, high concentrations of alum, PACI, and FeCl 3 were used, and removal efficiencies were determined to be 86–88%, 100%, and 46–72% for chemical oxygen demand (COD), SS ...

  • Process optimization and effect of thermal, alkaline,

    2020-5-6  and hydrogen peroxide pretreatment of waste activated sludge enhances methane production via organic molecule breakdown. Sci Rep. 2015;5: 16631. 24. Nazari L, Yuan Z, Santoro D, Sarathy S, Ho D, Batstone D, Xu CC, Ray MB. Low-temperature thermal pretreatment of municipal wastewater sludge: process optimization and effects on solubilization and ...

  • Optimization of Anaerobic Digestion of Sewage Sludge

    Optimization of anaerobic digestion of sewage sludge using thermophilic anaerobic pre-treatment Jingquan Lu BioScience and Technology, BioCentrum-DTU Technical University of Denmark DK-2800 Lyngby Denmark Submitted in partial fulfillment of the requirements for the Ph.D degree at the

  • Key factors governing alkaline pretreatment of waste ...

    2014-2-24  Abstract: Alkaline pretreatment is an effective technology to disintegrate sewage sludge, where alkali dosage and sludge concentration are two important factors. pH value or alkali concentration is usually adjusted in order to determine a proper dosage of alkali. ...

  • Influence of different pretreatments on anaerobic digestion

    2018-2-27  [7] JIANG H, LIU T, DING J T,et al. Optimization and performance of moderate combined alkali and microwave pretreatment for anaerobic digestion of waste-activated sludge[J]. Polish Journal of Environmental Studies,2018,27(2):689-697.

  • Distribution and removal of antibiotic resistance genes

    2019-6-18  J Zhang, C Lv, J Tong, J Liu, J Liu, D Yu, Y Wang, M Chen, Y Wei (2016b). Optimization and microbial community analysis of anaerobic co-digestion of food waste and sewage sludge based on microwave pretreatment. Bioresource Technology, 200: 253–261 25

  • Optimization of Sludge Dewatering Through

    2018-6-17  (2013). Optimization of Sludge Dewatering Through Pretreatment, Equipment Selection, and Testing. Drying Technology: Vol. 31, Special Issue on Dewatering of Wet Materials, pp. 193-201.

  • Optimization of a thermal hydrolysis process for

    2017-5-1  Optimization of a thermal hydrolysis process for sludge pre-treatment. Sapkaite I(1), Barrado E(2), Fdz-Polanco F(1), Pérez-Elvira SI(3). Author information: (1)Department of Chemical Engineering and Environmental Technology, University of Valladolid, Spain. (2)Department of Analytical Chemistry, University of Valladolid, Spain.

  • Advanced Thermal Hydrolysis: Optimization of a

    2019-12-12  The aim of this work was to study in depth the behavior and optimization of a novel process, called advanced thermal hydrolysis (ATH), to determine its utility as a pretreatment (sludge solubilization) or postreatment (organic matter removal) for anaerobic digestion (AD) in the sludge line of wastewater treatment plants (WWTPs). ATH is based on a thermal hydrolysis (TH) process plus hydrogen ...

  • Optimization and biokinetic studies on pretreatment

    Excess sludge generation is a major problem in biological effluent treatment processes. Utilization of excess sludge for gas production is an attractive route, which could be enhanced by pretreatment methods. This study involves two sets of experiments. The first set covers mechanical pretreatment of both feed and inoculum.

  • An executive review of sludge pretreatment by

    Besides, optimization methodologies of related parameters, the differences of optimum values and the similarities of affecting trends on cavitation and sludge pretreatment efficiency were specifically pointed out, including ambient conditions, ultrasonic properties, and sludge characteristics.

  • Mechanism and Parameter Optimization of Fenton’s

    2017-2-1  Mechanism and Parameter Optimization of Fenton’s Reagent Integrated with Surfactant Pretreatment to Improve Sludge Dewaterability Yi Xing1,2☯, Zhiqiang Wang1,2☯, Chen Hong1,3*, Qiang Yang1,2, Lihui Feng1,2, Mengmeng Jia1,2, Yifei Li1,2 1 Department of Environmental Engineering, University of Science and Technology Beijing, Beijing, China,

  • A Review on Effects of Seed Sludge Pretreatment and ...

    2020-7-1  Therefore, pretreatment of seed sludge is necessary to enrich hydrogen producing microorganisms for a hydrogen fermentation process. As the variation of substrates used for hydrogen fermentation, pretreatment methods of hydrogen producing seed sludge

  • Steam Explosion Pretreatment of Sludge for

    2020-3-20  sewage sludge was evaluated, and hydrothermal pretreatment was used to increase biogas yield [11]. Methane production of sludge without pretreatment was 155 mL CH4/g VS, while the methane yield after pretreatment under the conditions of 170 C and 1 h was 275 mL CH 4/g VS. In [12] the e ects

  • Optimization of microwave pretreatment of lignocellulosic ...

    2017-8-9  Optimization of microwave pretreatment of lignocellulosic waste for enhancing methane production: Hyacinth as an example Bai-Hang Zhao 1, 2, Jie Chen 1, Han-Qing Yu 2 (), Zhen-Hu Hu 3 (), Zheng-Bo Yue 3, Jun Li 1 1.Department of Municipal ...

  • 柴晓利 - Tongji University

    2017-10-3  23) Enhanced dewatering characteristics of waste activated sludge with Fenton pretreatment: effectiveness and statistical optimization. Frontiers of Environmental Science Engineering, 2014, 8(2): 267-276. IF, 1.799. 24) Influence of aeration modes on

  • An executive review of sludge pretreatment by

    Besides, optimization methodologies of related parameters, the differences of optimum values and the similarities of affecting trends on cavitation and sludge pretreatment efficiency were specifically pointed out, including ambient conditions, ultrasonic properties, and sludge characteristics.

  • A Review on Effects of Seed Sludge Pretreatment and ...

    2020-7-1  Therefore, pretreatment of seed sludge is necessary to enrich hydrogen producing microorganisms for a hydrogen fermentation process. As the variation of substrates used for hydrogen fermentation, pretreatment methods of hydrogen producing seed sludge

  • Optimisation of sludge pretreatment by low frequency ...

    Optimisation of sludge pretreatment by low frequency sonication under pressure . By Ngoc Tuan Le. Get PDF (7 MB) ... and adiabatic conditions, final optimization was achieved by searching for this pressure optimum and examining sequential procedure to avoid too high temperature dampening cavitation intensity and damaging the transducer. Such ...

  • Mechanism and Parameter Optimization of Fenton's

    Sulfuric acid (H 2 SO 4, 4 M) was used to adjust the initial pH of sludge to 4 before adding Fenton’s reagent.Fenton’s reagent was prepared by mixing FeSO 4 7H 2 O and H 2 O 2 (30 wt%). The cationic surfactant was DDBAC with a chemical formula of C 21 H 38 NCl and relative molecular mass of 340.00. All the chemicals used were of analytical grade, except for the bovine serum albumin of ...

  • Original Research Optimization and Performance of

    the treated sludge needs to be neutralized subsequently. While combined with a thermal pretreatment, chemical consumption can be reduced. Similarly, since alkali is helpful for sludge solubilization, heating efficiency can be improved significantly. Microwave is a form of electromagnetic radiation with a frequency range from

  • Technical Review of Dewatering Process for Excess Sludge ...

    And with the situation of sludge emission increasing, sludge disposal and public concern become the focus of environmental issues. Based on the influencing factors of sludge dewatering performance, this paper introduces the traditional, common and new sludge dewatering technology of urban sludge in recent ten years, and has made a prospect for future research based on the latest technological ...

  • Optimization of ultrasonic pretreatment and substrate ...

    Optimization of ultrasonic pretreatment and substrate/inoculum ratio to enhance hydrolysis and volatile fatty acid production from food waste Wanqian Guo,* Qinglian Wu, Shanshan Yang, Haichao Luo, Simai Peng, and Nanqi Ren ... the initial FW and sludge quantities (based on the volatile solid 20 (VS) content) to keep each designed S/I in each ...

  • Effect of alkaline microwaving pretreatment on

    Optimization for manure pretreatment with RSM. Together with the response values, the complete design matrixes are shown in Table 1.The highest DD reached 63.91% in this study.

  • A viable approach for commercial VFAs production from ...

    2020-1-22  sludge of 100ml were employed and filled with 300ml pretreated sludge (R1), 260ml supernatant (R2), and 40ml residual solid with 260ml distilled water (R3), respectively.

  • 张盼月-湖南大学环境科学与工程学院 - hnu.edu.cn

    2015-12-12  optimization, and desorption properties. Journal of Environmental Management, 2016, ... Shuguang Jin, Dongyi Li, Meixia Zhang, Xiangzhe Xu. Effect of alkaline addition on anaerobic sludge digestion with combined pretreatment of alkaline and high ...