Device for processing food waste or sludge in low-temperature evaporation mode through solar flat sheet membranes

Abstract

The invention discloses a device for processing food waste or sludge in a low-temperature evaporation mode through solar flat sheet membranes. The device is characterized in that a sealed box body composed of an upper solar flat sheet membrane and a lower solar flat sheet membrane is included, the upper solar flat sheet membrane is made of a light-transmitting organic thin membrane or a light-transmitting inorganic thin plate and is connected with the periphery of a frame in a sealed mode, and the lower solar flat sheet membrane is made of a transparent or nontransparent organic thin membrane or an inorganic thin plate and is connected with the periphery of the frame in a sealed mode; an uneven conveying belt used for accommodating food waste or wet sludge is arranged under the upper solar flat sheet membrane, the front face of the conveying belt is uneven, an upper water outlet is formed in the lower end of the upper solar flat sheet membrane, and a lower water outlet is formed in the lower end of the lower solar flat sheet membrane. Flowing-out water can be directly recycled or discharged, dry residues can be used as organic fertilizers for agriculture, and oil squeezed out from food waste dry residues can be recycled.

Description

technical field [0001] The invention belongs to the field of advanced treatment technology for harmless and low energy consumption treatment of meal waste or sludge, in particular to a low-temperature vaporization of meal waste or sludge in a closed environment by using the heat of solar light The moisture equipment can recycle the condensed water evaporated at low temperature without adding any chemicals. Background technique [0002] At present, most of the processes for treating food waste on the market are high-temperature oil-water separation and fermentation, followed by anaerobic treatment, biological contact oxidation treatment, chemical precipitation and other methods. The treated effluent and waste residue are difficult to meet the standard discharge or harmless recovery. Most of the sludge is treated with high investment, such as deep dehydration, drying, incineration or biodegradation, which is difficult to operate and easy to produce other pollution treatment me...

AI Technical Summary

Problems solved by technology

[0002] At present, most of the processes for treating food waste on the market are high-temperature oil-water separation and fermentation, followed by anaerobic treatment, biological contact oxidation treatment, chemical precipitation and other methods. The treated effluent and waste residue are difficult to meet the standard discharge or harmless recovery. Most of the sludge is treated with high investment such as deep dehydration, drying, incineration or biodegradation, which is difficult to operate and easy to produce other pollution treatment methods

The treatment of these methods is difficult to operate stably and meet the standards, and air pollution will also be generated during the incineration process, the process is long, and the operating cost is high.

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