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The project cost mainly includes the cost of earthwork excavation and HDPE membrane materials cost. Specially, no other installation devices are required. The black membrane of the biogas digester just need one-time investment and does not require subsequent maintenance, which reduces the daily operating cost.
(2) High strength and durability of the material.
The black film is made of high-density polyethylene or polyvinyl chloride, with high tensile strength, tear strength and wear resistance. It can withstand natural environment and mechanical damage to ensure the long-term stable operation of the biogas digester.
The black membrane of the biogas digester adopts advanced production processes and technologies with a lower permeability coefficient. It can effectively prevent the leakage of liquid and gas in the biogas digester.
(4) Wide range of applications.
The black film biogas digesters are suitable for various sizes farmers and farms. It can be customized according to actual needs and have strong adaptability.
(5) Easy installation.
The black film of the biogas digester can be cut and spliced according to actual needs. No special construction equipment and skills are required, which can save installation costs and time.
1) High density polyethylene (HDPE) geomembrane is a waterproof and anti-seepage material widely used in civil engineering, environmental protection, water conservancy, agriculture and other fields. The following is a detailed introduction to the blow molding production process of HDPE geomembrane:
2) Raw material preparation: Firstly, it is necessary to prepare high-density polyethylene particles, which are the main raw materials for producing HDPE geomembranes. HDPE particles shall have good thermal stability, aging resistance and puncture resistance.
3) Melt extrusion: High density polyethylene particles are heated and melted through a melt extruder to become a molten state of high-density polyethylene. Melt extruders typically include single screw extruders, twin screw extruders, and conical screw extruders. During the melting process, strict control of temperature, pressure, and screw speed is required to ensure the melting quality of high-density polyethylene.
4) Blow molding: Melted high-density polyethylene is blown into shape using a blow molding machine. Blow molding machines mainly include blow molding machines and blow molding machines. During the blow molding process, the melted high-density polyethylene is blown into a thin film shape through a blowing nozzle, and then the required thickness of HDPE geomembrane is produced through processes such as cooling, traction, and winding.
5) Welding: Weld the HDPE geomembrane to improve its anti-seepage performance. Welding methods include hot welding, ultrasonic welding, and electric fusion welding. When welding, it is necessary to ensure the firmness and sealing of the weld seam to prevent the penetration of moisture, chemicals, and other debris.
6) Testing and quality control: test various performance indexes of HDPE geomembrane produced, such as tensile strength, elongation at break, puncture resistance, aging resistance, etc. Ensure product quality meets national standards and customer requirements.
7) Packaging and storage: Pack the HDPE geomembrane that has passed the test and store it in a dry and ventilated warehouse to avoid exposure to sunlight, rain, and chemical corrosion.
Digester Volume Specifications
| NO | Effective volume(m3) | Diameter(m) | Height(m) | Anti-corrosion method | Stirring power (kw) | Mixer material |
| 1 | 300 | 7.64 | 7.2 | Electrophoresis/enamel | 5.5 | 304/carbon steel anticorrosion |
| 2 | 400 | 8.41 | 7.8 | Electrophoresis/enamel | 7.5 | 304/carbon steel anticorrosion |
| 3 | 500 | 9.17 | 8.4 | Electrophoresis/enamel | 7.5 | 304/carbon steel anticorrosion |
| 4 | 600 | 9.94 | 8.4 | Electrophoresis/enamel | 11 | 304/carbon steel anticorrosion |
| 5 | 800 | 10.7 | 9.6 | Electrophoresis/enamel | 11 | 304/carbon steel anticorrosion |
| 6 | 1000 | 11.46 | 10.8 | Electrophoresis/enamel | 15 | 304/carbon steel anticorrosion |
| 7 | 1500 | 12.99 | 12 | Electrophoresis/enamel | 18.5 | 304/carbon steel anticorrosion |
| 8 | 2000 | 13.76 | 14.4 | Electrophoresis/enamel | 18.5 | 304/carbon steel anticorrosion |
| 9 | 3000 | 15.29 | 16.8 | Electrophoresis/enamel | 22.5 | 304/carbon steel anticorrosion |
| 10 | 3500 | 16.82 | 16.8 | Electrophoresis/enamel | 25 | 304/carbon steel anticorrosion |
| 11 | 4000 | 17.58 | 17.4 | Electrophoresis/enamel | 25 | 304/carbon steel anticorrosion |
| 12 | 5000 | 18.34 | 19.8 | Electrophoresis/enamel | 30 | 304/carbon steel anticorrosion |
We, Qingdao Rely Environmental Technology Co., Ltd., established in 2015, is a comprehensive environmental enterprise, included product research, process design, system integration, equipment manufacturing, project construction and technical services. We committed to become a professional and reliable supplier of water treatment and organic waste solutions.
The products are widely used for drinking water treatment, industrial water treatment, domestic sewage water treatment, industrial sewage treatment, air pollution control, organic waste treatment and so on. Also supply environmental and efficient water treatment chemical products.
We have good long-term cooperation with Chinese well-known universities and research institutes, assure our strong technical strength and acquired series of technical patent. Our teammates have rich experience and already completed over 100 projects in domestic and foreign, gained highly reputation from local citizens and governments. In Asia, African and South American market, we have made several big landfill leachate treatment projects, treatment capacity from 100MT to 400MT, because of reasonable design, advanced equipment and high level construction, all projects run stable and efficient, proved our strong technical strength and high quality level.
With strong technical strength, we are not only a reliable equipment supplier, but also undertake EPC general contracting projects, EPC Service offered as the following.
1) Freely Preliminary Technical Consultation
2) Treatment Process design
3) Comprehensive Project Equipment Supply
4) Installation Technical Support
5) Debugging Technical Support
Warmly welcome to cooperate with us, for cleaner water, fresher air, more blue sky and more beautiful home!
World Class Technology Partners
World Class Device Partners
World Class Business Partners
FAQ
A: The black film biogas digesters are suitable for various sizes farmers and farms, used to treat allkinds of animal manure and all kinds of straw. It can be customized according to buyers' actual needs and have strong adaptability.
2. Q: What information do we need before ordering?
A1: Pls advise the max treatment capacity and biogas output you need per day.
A2: Pls advise the feedstock weight and type you can stablely get per day.
A3: Pls advise the available project land size.
3. Q: How long is your lead time?
A: Generally it is 10-25 days, depends on your needs and project scales.
4. Do you provide OEM service?
A: We provide high-quality OEM services, and also provide buyers customized products.
5. What other services can you provide?
A: Provide free technical support at any time, and also can help you design the whole treatment process of the project.
