Effect of screw filter press on biogas digester wastewater treatment

 

Most of the fecal sewage in the breeding industry chooses anaerobic treatment, and the most used anaerobic treatment process is the biogas digester.

There are two main ideas for the treatment of biogas residue and biogas slurry:

1. One is to use it directly in farmland without treatment, which is risky and the returns are not high. The risk mainly comes from the raw material composition of the biogas residue and the biogas slurry, and the pH value of the biogas residue and biogas slurry. In some places, the direct use of biogas residue and biogas slurry has caused agricultural damage. Moreover, it is difficult to obtain a fertilizer registration certificate for direct use, and it cannot be officially sold. The advantage is that there are no investment costs.

2. The other is to separate the biogas residue and biogas slurry from solid and liquid, and then ferment the solid part to make organic fertilizer, and the liquid part can irrigate farmland, or enter the sewage pipe network, or invest some funds to make liquid fertilizer.

The screw filter press is used to realize the solid-liquid separation of biogas residue.

So, what are the advantages of screw filter press in treating biogas residue?

1. The viscosity of biogas liquid is high. The traditional equipment adopts the filter cloth extrusion process, and the filter cloth is easy to block. The screw filter press adopts 304 stainless steel Jiaolong to convey the squeezed sludge, and the water is filtered through the gap between the dynamic and static rings, and there is no need to replace the filter. The cloth has a long service life.

2. The biogas residue in the biogas tank can be directly pumped to the screw filter press by the pump, and the rotating screw is used to push the biogas residue to move towards the discharge port. The purpose of dehydration of biogas residue. The squeezed biogas residue can be bagged and used nearby.

3. The dewatering and deep processing of biogas residue is the reuse of waste and creates value for the enterprise. The screw filter press runs smoothly with low operating costs. Easy to operate. It is widely used in pig farms.

 

Note: You can write to us or leave a message at any time to get technical support or solutions.

Email: info@tnwcn.com

Feedback: Click here