Biogas

The operator of a biogas plant was not satisfied with the rotary lobe pumps in use made by a competitor. The pumps showed signs of severe wear on the rotors after just a few weeks. There were also frequent occurrences of damage to the seals and gears. The operator of the biogas plant conducted a year long test to find the optimum pump for his requirements. Several pumps were tested. At the end of the test phase, the customer appointed 40 Boerger Rotary Lobe Pumps to be installed in the biogas plant.

 The impeccable quality and low maintenance design of the Boerger Rotary Lobe Pump impressed the customer, particularly the Boerger Premium profile rotors, which were especially developed for the biogas sector. Fibrous matter in renewable resources is captured in the profile grooves of the Premium profile rotor. This constantly exchanging film forms all over the seal between the rotors and the casing. Besides the high level of  pump efficiency, this patented technology enables premium profile rotor operation be virtually free of wear.

Technical data

At a two-stage biogas plant, staff were having increasing problems with blockages in an eccentric screw pump due to solids. The pump was installed between the main and secondary fermenter. Various silages are used within the plant (corn, millet, grass, rye) as well as dried chicken manure. 

The customer chose a Börger Rotorrake to reduce the solids. The Rotorrake was fitted on the suction side directly in front of the eccentric screw pump.  

The operator of the biogas plant is extremely pleased with the chopping yield. No more pump blockages occurred. The Börger Rotorrake's long service life and ease of maintenance continue to impress the customer. He is now considering using additional Börger products for the biogas plant.

Technical data

An agricultural holding was looking for reliable feeding technology for transferring corn silage to a biogas plant. 

After scrutinizing the feeding technology of various providers, the biogas plant operator chose the Boerger Powerfeed 400. The customer was impressed with the renowned high quality of the Boerger products, particularly the entirely closed system, the uncomplicated, easy controls and the Powerfeed design which prevents gas from escaping. 

The customer chose a Boerger Biogas Rotary Lobe Pump to convey the recirculate.

 The customer is extremely pleased with the Boerger biogas Rotary Lobe Pump and the Powerfeed 400. The long service life and easy handling ensure efficient operation of the biogas plant.

Technical data

A plant construction company specializing in optimizing biogas plants was looking for feeding technology for a 950 kW plant. It was essential that the technology would be odorless and free of gas.

The plant construction company opted for a Boerger Powerfeed. They were impressed with the Powerfeed's innovative and sophisticated technology and particularly with the high efficiency of Börger feeding technology. The renewable resources are worn down due to the positioning and type of the press unit in the Powerfeed as well as the design of blade and dosing unit. Through this they obtain a larger surface area. All the trapped air is released by compressing the solids into clumps. Less floating layers form in the tank.

By specifically dosing the solids, the agitating in the tank could be significantly reduced. The plant construction company and the plant operator are extremely satisfied with the Boerger Powerfeed.

Technical data

The operator of a biogas plant was looking for an effective separator. The plant operator had noticed that the solids content in the fermenter and the secondary fermenter was too high. Therefore, a separator was required to remove the solids from the substrate.

The customer opted for a Börger Bioselect RC 40, as he had used Boerger products with excellent results and had heard about the simple but highly efficient operation of the Bioselect. A Boerger PL 200 Rotary Lobe Pump conveyed the substrate from the fermenter to the Bioselect. A control unit continuously regulates the Bioselect's optimum load. The Bioselect separates the solids from the liquid phase. The solids leave the system, while the liquid phase is fed back into the fermenter in parts.   

The customer is highly satisfied with the reliable Boerger Bioselect. The easy handling and loose consistency of the solids were key factors in the decision.

Technical data

The operator of a biogas plant was looking for a compact separation unit which could be mounted on a trailer. A top priority for the operator was that the separator should be easy to operate. 

The customer decided on a Boerger Bioselect BS. The Bioselect BS is a highly-efficient combination of two Boerger Rotary Lobe Pumps and effective filter technology with a downstream press channel. One of the rotary lobe pumps ensures that the thick mass is reliably sealed and at the same time transfers it for further processing. Using an intelligent control unit and the adjustable pump speed, the degree of thickness can be determined. 

The Bioselect is mounted on a trailer, as the plant operator wanted to use the unit in various locations. The customer wanted to reduce the DS content in the biogas plant fermenters. To achieve this, the solids are separated from the secondary fermenter by the Bioselect. The thin phase is pumped in the closed system to the fermenter or the final storage tank. The different substances (thin and thick phase) are conveyed for further processing with the separator pumps. Additional pumps are not required. The Bioselect operates in continuous mode for 12 hours per day. The customer is extremely pleased with the Bioselect BS, particularly with the reliable operation and easy handling of the separator.

Technical data

The operator of a biogas plant was looking for three new tanks for the facility. They were to be used as a beet store, a fermenter and final storage tank. The tank for final storage needed to have a volume of 5,000 m³. 

The customer opted for three stainless steel tanks from Börger. The customer was particularly impressed with all the options available for Börger stainless steel tanks. The customer could select the perfect solution for his requirements from the wide range of different covers. The plan is to extend the beet tank from the current storage capacity of 1,895 m³ up to 2,527 m³ in 2015. 

The stability of the stainless steel tank and the option of dismantling it to assemble in another location gave the operator of the biogas plant financial security should the guaranteed payments for power feed into the power under the terms of the German Renewable Energy Act end after 20 years.

Technical data

A designer of biogas plants was looking for a macerator/pump combination for the secondary crushing of slaughterhouse waste. According to the Hygiene Directive, slaughterhouse waste must be reduced to a grain size of < 12 mm before feeding it into the system. The slaughterhouse waste originates from chicken, pork and beef slaughtering and mainly consists of intestines and animal parts (ears, legs, eyes, pig’s heads, etc.). Based on the positive experience made in another project, the planning department opted for a Börger macerator/pump combination consisting of an auger feed, a Multicrusher, a rotary lobe pump and a Multichopper pure.

Technical data

The biogas plant operator was looking for reliable liquid feeding technology to feed solids into their secondary fermenter. The biogas plant was upgraded to include an additional CHP. The feeding technology was also required to load the fermenter and replace the plug screw currently used.

After finding out about state-of-the-art technology from various manufacturers, the biogas plant operator decided on Börger's Powerfeed duo. In addition to the renowned optimum reliability of Börger products, the customer was also particularly impressed by the Powerfeed duo's well-engineered, integrated design concept. 

The storage tank supplied with the Powerfeed duo can be filled directly using a wheeled loader. Constant loading of the Powerfeed is guaranteed thanks to the 10 t storage capacity. 

The Powerfeed and a high-capacity biogas pump form the central unit of the liquid feeding technology. The unit is very easy to operate using an operating device at the control cabinet. A control unit ensures trouble-free system operation. Different sensors constantly monitor the fill level in the Powerfeed. The data readings are transmitted to the control unit. The Powerfeed switches off automatically when the pre-set limits are exceeded.

The customer is very satisfied with the Powerfeed duo. He was won over by its optimum reliability, easy operation and efficient biomass feed.

Technical data

An operator of a biogas plant has been using a solids dosing feeder for feeding the biomass into the fermenter for several years. The operator was looking for an alternative feeding technology due to the extension of the biogas plant and the very high agitating effort.

The operator opted for a Börger Powerfeed connect. The liquid feeding technology can be used for feeding tanks of any number. In addition, they were able to use the existing technology to a large extent.

The biogas plant operator is very satisfied with the Powerfeed connect. The customer was particularly impressed by the ease of operation, the trouble-free operation and the long service life. In addition, the agitating effort in the tanks has been significantly reduced and the gas yield has been increased.

Technical data