Forward osmosis concentration system and concentration method

Abstract

The invention relates to a forward osmosis concentration system. The system comprises a seawater pretreatment clarifying tank, a first circular draw-off pump, a multistage draw solution evaporation regulating tank, transparent glass, a second circular draw-off pump, a secondary filtration device, a draw solution storage tank, a draw solution injection pump, a concentrated liquor draw-off pump, a concentration tank, a concentrated liquor injection pump, a forward osmosis device, a draw solution draw-off pump, a third circular draw-off pump, a water collecting pipeline and a water collecting tank. Water in raw juice is driven by osmosis pressure in the system to enter a draw solution through a forward osmosis membrane, thus realizing the concentration of the raw juice; the diluted draw solution can be evaporated into a high-concentration draw solution through a seawater baysalt technology, and is delivered back to the forward osmosis technology again as a draw solution, thus the high-efficiency cyclic utilization of the draw solution is realized, the engineering construction cost and the running cost are greatly reduced, and considerable economic benefits are achieved.

Description

technical field [0001] The invention relates to a fruit juice concentration method, which is a technology for concentrating tomato juice by forward osmosis, which uses high-concentration brine as a drawing liquid to extract water from tomato juice. This technology is also applicable to the concentration processing of other fruit juices and medicines. Background technique [0002] Tomato is a fruity vegetable with rich nutrition and delicious color. It is rich in vitamins, cellulose, pectin and lycopene. Lycopene is a good anti-cancer and anti-mutation antioxidant. It can Effectively prevent and treat various diseases caused by aging and decreased immunity. Therefore, it is widely favored by countries all over the world, but its harvest period is short, the market is concentrated, it is difficult to store for a long time, and it is not convenient for transportation. Therefore, it needs to be concentrated and processed into products that are easy to store to adjust its supply ...

AI Technical Summary

Problems solved by technology

Therefore, it is widely favored by countries all over the world, but its harvest period is short, the market is concentrated, it is difficult to store for a long time, and it is not convenient for transportation. Therefore, it needs to be concentrated and processed into products that are easy to store to adjust its supply in off-peak seasons

[0003] At present, the mainstream in the industry uses vacuum evaporation and reverse osmosis technology to concentrate fruit juice. Rodrigues et al. applied reverse osmosis to the concentration of camu–camu fruit juice, and proposed that reverse osmosis concentration can be used as a concentration of classic vacuum evaporation. Links to application; Zhang Peng et al. used tubular reverse osmosis membrane system to dehydrate and concentrate tomato juice (powder), and investigated the influence of pressure, temperature and concentration on membrane flux. Although reverse osmosis concentration technology is relatively Working at a relatively low temperature, the loss of nutrients such as vitamins is small, which ensures the high quality of the product, but due to the limitation of the osmotic pressure of the juice, the concentration that can be achieved is relatively low, and the production and operation consumes a lot of energy, causing membrane pollution. Seriously, it cannot be concentrated into a high-concentration product at one time, and it must be integrated with other methods

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