Coalescence-adsorption coupling treatment instead of alkaline washing-water washing process for efficient removal of sulfuric acid and sulfates

2021 ◽  
Author(s):  
Zhaojin Lu ◽  
Xiaoyong Yang ◽  
Bingjie Wang ◽  
Hui Li ◽  
Zhishan Bai
Keyword(s):  
Sulfuric Acid ◽  
Efficient Removal ◽  
Water Washing ◽  
Washing Process ◽  
Washing Water ◽  
Coupling Treatment

Optimizing Water Washing Process for Sunflower Heads before Pectin Extraction

1996 ◽  
Vol 61 (3) ◽  
pp. 608-612 ◽  
Author(s):  
X.Q. SHI ◽  
K.C. CHANG ◽  
J.G. SCHWARZ ◽  
D. WIESENBORN ◽  
M.C. SHIH
Keyword(s):  
Water Washing ◽  
Washing Process

scholarly journals The Utilization of Rice Wastewater Combined With Red Dragon Fruit (Hylocereus polyrhizus) as Basic Ingredients of Nata De Leri

2019 ◽  
Vol 6 (1) ◽  
pp. 62-69
Author(s):  
Meri Septiana ◽  
Suci Wulan Pawhestri ◽  
Nurhaida Widiani ◽  
Rina Budi
Keyword(s):  
Water Content ◽  
Water Concentration ◽  
Sweet Taste ◽  
Skin Extract ◽  
Black Rice ◽  
Crude Fiber Content ◽  
Washing Process ◽  
Fruit Skin ◽  
Dragon Fruit ◽  
Washing Water

Nata de leri is one of the products produced from fermented organic white, red, black rice washing water with the addition of red dragon fruit skin extract. In javanese the rice washing water is called Leri so that the resulting nata is called “Nata De Leri”. (carbohydrates, proteins, minerals) that are carried away from the rice membrane during the washing process. So that it can be utilized by microorganisms as a medium in making nata. The addition of red dragon fruit skin extract gives color because it contains a lot of anthocyanin and also the fiber and water content is very high. The purpose of this research was to determine the organoleptic and chemical characteristics of nata. This research used a qualitative descriptive method using a 2 factor complete randomized design and the treatment given was 75% of white, red, black rice washing water concentration, The concentration of red dragon fruit skin extract 75%, 50%, and 25%. The results showed that the most preferred texture on the addition of 75% red dragon fruit skin extract was an average of 4,65, the most preferred color in the addition of 75% and 25% red dragon fruit skin extract, the aroma of the average panelist doesn’t like all the aroma of nata de leri, for the taste all the samples were liked by the panelists because of their sweet taste. While the water content and crude fiber content produced are quite high on average but do not exceed SNI.

scholarly journals The Chlorine Reduction in Edamame by Water-Ozonated Minimally Process

2021 ◽  
Vol 1 (3) ◽  
Author(s):  
Silvia Oktavia Nur Yudiastuti ◽  
Rizza Wijaya
Keyword(s):  
Contact Time ◽  
Research Method ◽  
Residual Chlorine ◽  
Titration Method ◽  
Research Results ◽  
Washing Process ◽  
Ozonation Time ◽  
Water Based ◽  
Washing Water ◽  
Ozonated Water

The objective of this article was to study the effect of washing edamame using ozonated water to reduce residual chlorine contained in edamame through a continuous washing process. Chlorine residue in edamame was caused by the use of fertilizers and pesticides that contain chlorine compounds. The research method used was descriptive explanatory research consist of two treatment levels of ozonation time (0, 10, and 15 minutes) and ozone contact time (0, 12, 18, and 24 minutes) which were repeated twice. The residual chlorine and pesticide concentrations were calculated using the titration method. Based on research results, ozone can reduce chlorine in edamame. The lowest detected chlorine was in edamame which had been washed using ozone water with an ozonation time of 15 minutes with the amount of chlorine reduced by 56%. The longer the contact time, the greater the amount of reduced chlorine and the lower the concentration of ozone remaining in the washing water. Based on the research results, a brief conclusion that can be explained was ozone could reduce chlorine in edamame caused by fertilizer and disinfectant overuse until 50%.

scholarly journals Chlorides Removal and Control through Water-washing Process on MSWI Fly Ash

2016 ◽  
Vol 31 ◽  
pp. 560-566 ◽  
Author(s):  
Xiongfei Chen ◽  
Yafan Bi ◽  
Hongbo Zhang ◽  
Jia Wang
Keyword(s):  
Fly Ash ◽  
Mswi Fly Ash ◽  
Water Washing ◽  
Washing Process ◽  
And Control

Water washing: a major hydrocarbon alteration process. Part 1—geochemistry

2008 ◽  
Vol 48 (1) ◽  
pp. 209
Author(s):  
Lindsay Elliott
Keyword(s):  
Primary Control ◽  
Gas Oil ◽  
Oil Accumulation ◽  
Water Washing ◽  
Source Type ◽  
Alteration Process ◽  
Washing Process ◽  
Major Alteration ◽  
Insoluble Compounds ◽  
Major Hydrocarbon

This paper presents the geochemistry portion of a larger study attempting to better predict hydrocarbon type prior to drilling. The geochemistry indicates that condensate-gas or gas-oil ratios have a predictable relationship with gasoline-range hydrocarbon solubility. The study shows that soluble gasoline-range aromatic compounds such as toluene are significantly depleted in oils compared with gases, whereas more insoluble compounds such as methylcyclohexane are enriched. The review indicates that water-washing in the reservoir is a major alteration process affecting hydrocarbon type and, in extreme cases, can convert a major gas accumulation into a smaller oil accumulation. Source type and maturity have a relationship with the volume of liquids produced, but are not the primary control on the hydrocarbon phase in the reservoir. The water-washing process will also affect carbon dioxide geosequestration projects, particularly where injection into abandoned low GOR oilfields is proposed.

scholarly journals Water washing of axial flow compressors: numerical study on the fate of injected droplets

2020 ◽  
Vol 197 ◽  
pp. 11015
Author(s):  
Giuliano Agati ◽  
Francesca Di Gruttola ◽  
Serena Gabriele ◽  
Domenico Simone ◽  
Paolo Venturini ◽  
...  
Keyword(s):  
Numerical Study ◽  
Axial Flow ◽  
Rotor Blades ◽  
Injection System ◽  
Asymmetric Distribution ◽  
Wall Functions ◽  
Erosion Risk ◽  
Water Washing ◽  
Washing Process ◽  
The Impact

In turbomachinery applications blade fouling represents a main cause of performance degradation. Among the different techniques currently available, online water washing is one of the most effective in removing deposit from the blades. Since this kind of washing is applied when the machine is close to design conditions, injected droplets are strongly accelerated when they reach the rotor blades and the understanding of their interaction with the blades is not straightforward. Moreover, undesirable phenomena like blades erosion or liquid film formation can occur. The present study aims at assessing droplets dragging from the injection system placed at the compressor inlet till the first stage rotor blades, with a focus on droplets impact locations, on the washing process and the associated risk of erosion. 3D numerical simulations of the whole compressor geometry (up to the first rotor stage) are performed by using Ansys Fluent to account for the asymmetric distribution of the sprays around of the machine struts, IGV and rotor blades. The simulations are carried out by adopting the k-ε realizable turbulence model with standard wall functions, coupled with the discretephase model to track injected droplets motion. Droplets-wall interaction is also accounted for by adopting the Stanton-Rutland model which define a droplet impact outcome depending on the impact conditions. The induced erosion is evaluated by adopting an erosion model previously developed by some of the authors and implemented in Fluent through the use of a User Defined Function (UDF). Two sets of simulations are performed, by considering the rotor still and rotating, representative of off-line and on-line water washing conditions, respectively. In the rotating simulation, the Multiple Reference Frame Model is used. The obtained results demonstrate that the washing process differs substantially between the fixed and the rotating case. Moreover, to quantify the water washing effectiveness and the erosion risk, new indices were introduced and computed for the main components of the machine. These indices can be considered as useful prescriptions in the optimization process of water washing systems.

scholarly journals Highly efficient removal of sulfuric acid aerosol by a combined wet electrostatic precipitator

RSC Advances ◽  
2018 ◽  
Vol 8 (1) ◽  
pp. 59-66 ◽  
Author(s):  
Zhengda Yang ◽  
Chenghang Zheng ◽  
Xuefeng Zhang ◽  
Qianyun Chang ◽  
Weiguo Weng ◽  
...  
Keyword(s):  
Sulfuric Acid ◽  
Removal Efficiency ◽  
Electrostatic Precipitator ◽  
Efficient Removal ◽  
Highly Efficient

A perforated pre-charger improves the removal efficiency of sulfuric acid aerosol by a wet electrostatic precipitator.

scholarly journals Recovery of microorganisms on fabric materials after low water temperature washing with non-oxidizing acidic bleaching formulation by culture method

2014 ◽  
Vol 12 (3) ◽  
pp. 418-425
Author(s):  
Jaesung Lee ◽  
John A. Lopes ◽  
Melvin A. Pascall
Keyword(s):  
Escherichia Coli ◽  
Water Temperature ◽  
Culture Method ◽  
Listeria Innocua ◽  
Cross Contamination ◽  
Food Grade ◽  
Washing Process ◽  
Fabric Materials ◽  
Washing Water ◽  
Blend Fabric

The recovery of microorganisms to different fabrics was evaluated after a washing process combined with a food-grade non-oxidizing acidic formulation and low washing water temperature. Cotton, polyester and a polyester/cotton blend fabric samples were inoculated with Escherichia coli, Listeria innocua and Saccharomyces cerevisiae, then dried for 1 day. They were separately placed in a simulated fabric washer and decontaminated for 1 and 10 min with the acidic formulation at 23 °C water washing temperature. The combination of direct detecting and dilution methods was used to detect survivors on fabrics. The use of ≥0.1% acidic formulation in the washing process significantly increased the efficacy of the washing for all fabric samples. Microorganisms on the cotton and mixed fabric appeared to bind more strongly and were more resistant to the washing process. No viability was observed on the fabric swatches at 1 cfu/sample detection limit when the washing process was combined with 0.5% acidic formulation in the 10 min washing cycle. These findings can be used to increase the efficiency of sanitizing fabrics in an environmentally friendly way, for remove harmful microorganisms from them and reduce cross-contamination.

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