One of the important problems of ethyl alcohol production is waste disposal. The use of special equipment allows you to effectively solve this problem and optimally use raw materials at all stages of production.

What's out?

A large amount of waste is produced during the production of ethyl alcohol. Such a by-product is grain bard. It is a light brown thick substance consisting of a solid fraction (cake) and a liquid phase (filtrate). For every liter of alcohol there are 10-13 liters of bard. The humidity of the drug is 90-92%. The dry matter contains 5-10% fiber and about 40% protein.

Due to the presence of fiber, a high content of protein and other useful substances, barberry has great nutritional value and can be a good feed additive. But it is difficult to use it in liquid form, because it has a very short shelf life (only a day). In this regard, manufacturers have a need for processing or disposal of production waste with minimal costs.

What should the manufacturer do?

There are several options:

Enter into contracts with sewage treatment plants for the removal of bard.
Build your own cleaning facilities.
Remodel.

Disposal problems through sewage treatment plants

Transportation of bard to treatment facilities requires compliance with special safety rules. Compliance with these rules is an additional cost for the manufacturer.
Complete disposal through sewage treatment plants is difficult because there are no strains of microorganisms that can process fugate.
Special fields for filtration are used to clean drains. And this is the removal of large areas, pollution of groundwater, reservoirs, and air.

Features of processing

Due to the content of crushed grain residues in the bard, at the first stages of processing, it is necessary to separate it into solid and liquid parts.
The use of a press-screw separator allows you to obtain a final humidity of up to 60%, and when using a decanter - 75-80%.
The resulting cake must be dried to prevent fermentation.
After the press-screw separator, the solid fraction of bard can be used as animal feed for 1-2 days without additional drying.
To sell the cake to companies producing compound feed, it must be dried to a moisture content of 8-10%.
Western European manufacturers use separated fugate for the production of technical alcohol.
If there are no other opportunities for disposal, fugat is applied to the fields in compliance with the norms of area distribution or used as a drink for livestock. A mass discharge into the river without area distribution can cause damage to the environment.

The best option is recycling

Currently, the most effective method of processing alcohol production waste is the use of a press-screw separator.

The line for the processing of alcohol bard, offered by the production enterprise "Techno-T", has several significant advantages:

the optimal cost of the equipment compared to analogues on the market;
low energy consumption;
versatility: you can use the entire line or separate installations in the conditions of already functioning production.

The line includes the following equipment:

SBM separator for squeezing and dividing into solid and liquid parts;
PB press (one or two) for squeezing the cake;
dryer (RDS or RTS models of various capacities) for the final dehydration of the solid fraction to the required parameters.

In the case of a technological process, there is no need to use decanters, which positively affects the profitability of production. Lines can be equipped depending on the planned volume of processing: from 60 to 500 tons of bard per day.

The main parameters of the output product:

humidity - not higher than 10%;
in dry matter:

- Protein - more than 25%,

- carbohydrates - more than 25%,

- cellulose - less than 10%.

The yield of dry flour from 1 ton of barley is 34 kg.

After drying, the cake can be used for fattening animals or as a component during the production of compound feed. It is a valuable feed with a high protein content and is in demand on the domestic and world markets.