Evaluation of Nanofiltration for the Recovery of Brine from Sugar Liquor Decolourising Resin Regeneration Waste

The recovery of brine from the regeneration effluent from cane sugar Liquor decolourising ion exchange resin by means of nano filtration has been investigated on a Laboratory and pilot plant scale. This effluent is produced at 80°C and contains up to 110 g/ℓ of sodium chloride and up to 6 g/ℓ (as total carbon) of organic matter. The SelRO MPT-30 membrane was selected for the pilot plant trials, which were carried out at 3 MPa and 45 °C or 60 °C. Point retention values ranged from (-2) to 15 % for sodium chloride and from 71 to 93 % for total carbon. Final water recoveries between 69 and 83 % were investigated. The sodium chloride recovery ranged from 64 to 81 % and the total carbon removal ranged from 79 to 89 %. Based on experiments using the salt-rich fraction of the effluent and a water balance over the regeneration system, it was calculated that a 30 % reduction in effluent volume and a 60 % reduction in salt consumption could be achieved. In the tests carried out so far, the use of the recovered brine in the regeneration of pilot resin columns did not lower the decolourising capacity of the resin.

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Ion exchange process in the presence of high sulphate concentration: resin regeneration and spent brine reuse

Water Science & Technology Water Supply ◽

10.2166/ws.2006.791 ◽

2006 ◽

Vol 6 (3) ◽

pp. 35-41 ◽

Cited By ~ 2

Author(s):

R. Baciocchi ◽

A. Chiavola

Keyword(s):

Sodium Chloride ◽

Ion Exchange ◽

Exchange Process ◽

Chloride Concentration ◽

Barium Chloride ◽

Ion Exchange Resin ◽

Mass Action ◽

Sulphate Concentration ◽

Ion Exchange Process ◽

Resin Regeneration

This paper provides new insights on the regeneration step of an ion exchange process for the treatment of surface and ground water characterized by high sulphate concentration. Repeated regeneration of ion exchange resin with a sodium chloride solution (brine) did not alter the resin performances with respect to the fresh one. Besides, neither the sodium chloride concentration of the brine, which was varied between 1 and 3 M, nor the presence of sulphates at concentrations up to 20 g/L in the brine, did notably affect the regeneration efficiency. The brine was effectively treated by adding calcium or barium chloride, in order to remove the sulphates and re-establish the original chloride concentration. Calcium chloride was allowed to obtain up to 70% sulphate precipitation, whereas an almost 100% precipitation efficiency was obtained when barium chloride was used. The precipitation step was described by a model based on the mass action, coupled to the Bromley model for the description of the non-ideal behaviour of the electrolytic solution. This model was shown to give correct, or at least conservative, estimates of the equilibrium sulphate concentration when either calcium or barium chloride was used as precipitating agent.

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Assessing the Impact of a Vinasse Pilot Plant Scale-Up on the Key Processes of the Ethanol Supply Chain

Mathematical Problems in Engineering ◽

10.1155/2016/3504682 ◽

2016 ◽

Vol 2016 ◽

pp. 1-9 ◽

Cited By ~ 4

Author(s):

Rocio Ramos-Hernández ◽

Dulce Rocio Mota-López ◽

Cuauhtémoc Sánchez-Ramírez ◽

Giner Alor-Hernández ◽

Jorge Luis García-Alcaraz ◽

...

Keyword(s):

Supply Chain ◽

Pilot Plant ◽

Scale Up ◽

Cane Sugar ◽

Order Fulfillment ◽

Sale Price ◽

Livestock Feed ◽

Pilot Plant Scale ◽

Water Pollutant ◽

The Impact

One of the byproducts generated in the cane sugar production is molasses, which is used for ethanol distillation. However, one of the problems of distilleries is vinasse. Vinasse is highly water pollutant and is dumped untreated in lakes or rivers and damages the environment. The company FALA developed a pilot plant that uses vinasse to produce a type of livestock feed called MD60. In this paper, the impact of the pilot plant’s scale-up in the key processes of the company’s supply chain is analyzed. With the help of a sensitivity analysis, this study finds the values that would allow the company to improve its order fulfillment indicator and to increase profits, assuming an expected demand by the introduction of this new product into the market. The results show that (1) the pilot plant fulfills 32% of the orders, (2) according to the current vinasse storage capacity, it is possible to fulfill up to 77% of the orders by scaling up the pilot plant, (3) to satisfy 100% of the orders, it is necessary to use all the vinasse generated, and (4) the highest profit is reached by processing all the vinasse and by considering the upper sale price.

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Adjustment of Olive Fruit Temperature before Grinding for Olive Oil Extraction. Experimental Study and Pilot Plant Trials

Processes ◽

10.3390/pr9040586 ◽

2021 ◽

Vol 9 (4) ◽

pp. 586

Author(s):

Eddy Plasquy ◽

José María García Martos ◽

María del Carmen Florido Fernández ◽

Rafael Rubén Sola-Guirado ◽

Juan Francisco García Martín

Keyword(s):

Heat Treatment ◽

Pilot Plant ◽

Heating System ◽

Oil Extraction ◽

Warm Up ◽

Precise Adjustment ◽

Olive Cultivars ◽

Plant Trials ◽

Washing Water

Harvesting at high temperatures and bulk transport can negatively influence the quality of olives and lead to undesirable alterations in the extracted oil. Cooling the fruit in the field would be the most logical solution, but it means that the olives arrive too cold at the mill for immediate processing. In this work, the use of warm water in the washing tub to warm up the fruit before grinding instead of flash heat treatment on the paste was assessed in two experiments. In the first one, at the laboratory level, the temperature after milling was determined in three olive cultivars, previously stored at 5 or 10 °C, and then submerged at different water temperatures (25, 30, and 35 °C) for 15, 30, 45, and 60 s. In the second one, two batches of olives were cooled in the field at 5 °C and then conditioned with washing water to obtain a paste at the entrance of the pilot plant malaxer at 27 °C. The temperature of the olives was measured at five points from the discharging up to their entering, as paste, into the malaxer. The results demonstrated the feasibility of the method as the temperature of the ground olives was kept at the desired temperature (28 ± 1 °C). The trials highlight the potential for automating an even more precise adjustment of the temperature of the olives before milling once the washing tub is equipped with a safe heating system.

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Integrated treatment of landfill leachates including electrooxidation at pilot plant scale

Journal of Hazardous Materials ◽

10.1016/j.jhazmat.2008.11.037 ◽

2009 ◽

Vol 166 (2-3) ◽

pp. 1530-1534 ◽

Cited By ~ 62

Author(s):

Ane Urtiaga ◽

Ana Rueda ◽

Ángela Anglada ◽

Inmaculada Ortiz

Keyword(s):

Pilot Plant ◽

Integrated Treatment ◽

Landfill Leachates ◽

Pilot Plant Scale

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Partial degradation of five pesticides and an industrial pollutant by ozonation in a pilot-plant scale reactor

Journal of Hazardous Materials ◽

10.1016/j.jhazmat.2006.05.058 ◽

2006 ◽

Vol 138 (2) ◽

pp. 363-369 ◽

Cited By ~ 88

Author(s):

M MALDONADO ◽

S MALATO ◽

L PEREZESTRADA ◽

W GERNJAK ◽

I OLLER ◽

...

Keyword(s):

Pilot Plant ◽

Pilot Plant Scale ◽

Partial Degradation ◽

Scale Reactor

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Experimental Development at a Pilot Plant Scale of a Reduced Activation Ferritic/Martensitic RAFM Steel, Asturfer®

Advances in Science and Technology ◽

10.4028/www.scientific.net/ast.73.36 ◽

2010 ◽

Vol 73 ◽

pp. 36-40 ◽

Cited By ~ 3

Author(s):

Ana Morán ◽

Rubén Coto ◽

Javier Belzunce ◽

Jose Manuel Artímez

Keyword(s):

Stainless Steels ◽

Pilot Plant ◽

Austenitic Stainless Steels ◽

Martensitic Steels ◽

Font Size ◽

Experimental Development ◽

Pilot Plant Scale ◽

Fusion Material ◽

Rafm Steel ◽

The Eu

Ferritic/Martensitic steels, with chromium contents ranging between 9 and 12%, were introduced into fusion material programs due to their better creep resistance and excellent thermal and nuclear properties compared to austenitic stainless steels. Reduced activation ferritic/martensitic (RAFM) steels are considered promising candidates for the test blanket modules of the future International Thermonuclear Experimental Reactor (ITER), being EUROFER steel is the EU reference material. It is a 9 % Cr RAFM steel which exhibits a tempered martensitic microstructure and presently allows operation up to 550 ⁰C. This paper shows the work carried out to develop at a pilot plant scale a Reduced Activation Ferritic/Martensitic (RAFM) steel, Asturfer ®, with chemical composition and mechanical properties very close to EUROFER steel.

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