HOMEBIOGAS HBG 7.0 Owner's Manual

Household biogas system

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HBG 7.0 HOUSEHOLD BIOGAS SYSTEM

OWNER'S MANUAL

VERSION 140822

HB7GF/OM/140822

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Summary of Contents for HOMEBIOGAS HBG 7.0

Page 2 Introduction Safety System Assembly Activating the System Daily Operation System Care Troubleshooting Tech Specs Homebiogas Fertilizer Warranty...
Page 3 The HOMEBIOGAS household biogas system turns organic waste like food scraps and animal manure into biogas, which can be used for cooking, and natural liquid fertilizer, which can be used for gardening. Biogas is generated in the system by the anaerobic (without oxygen) fermentation of organic matter. Biogas is a flammable gas that is lighter than air, composed mainly of methane and carbon dioxide.
Page 4 main parts of the system plunger & inlet cover plunger & inlet cover top section: gas storage tank top section: gas storage tank plunger slot integrated pressure system integrated pressure system plunger slot biogas ﬁlter biogas ﬁlter waste inlet sink waste inlet sink gas outlet pipe gas outlet pipe...
Page 5 Use only devices compatible with No open flames or sparks within 5 Only install system outdoors so ex- diameter. Contact Homebiogas if or adapted for biogas use. Visit meters (15 ft.) from the system. cess gas can be released safely.
Page 6 Scan QR for a step-by-step video of the assembly process. system assembly (Link to video: youtu.be/SvV8MbnzRls) From Assembly to Usage: From Assembly to Usage: wait 1 day wait 1 day 2 hours 2 hours 1 hour 1 hour 1. choose a suitable site 2.
Page 7 & preparation It is important to choose and prepare the right spot for your HomeBiogas system before installation to ensure It is important to choose and prepare the right spot for your HomeBiogas system before installation to ensure optimum performance and avoid potential damage to the system.
Page 8 0.5m 0.7m 2.7m 0.5m 5.2m prepare at least 2.7 x 5.2m (9 x 17ft) system should be installed close to prepare a firm, flat surface clear of prepare at least 2.7 x 5.2m space system should be installed close prepare a ﬁrm, ﬂat surface clear of space for the system kitchen/cooking area obstructions - do not place on soft...
Page 9 preparation for gas pipe installation preparation for gas pipe installation The system can be connected to a stove/appliance up to 40m (130ft) away (17m/56ft gas tubing provided). The system can be connected to a stove/appliance up to 20m away (13m gas tubing provided). Plan a suitable route for the gas pipe to ensure optimum gas flow and prevent damage to the pipe - follow Plan a suitable route for the gas pipe to ensure optimum gas flow and prevent damage to the pipe - detailed instructions for gas pipe and drainage valve installation on page 26, after assembling system.
Page 10 system parts (box B) gas filter gas filter overflow overflow clearing rod clearing rod plunger plunger sink & inlet pipe sink & inlet pipe assembly assembly gas outlet gas outlet connecting pipe connecting pipe fertilizer fertilizer combined fertilizer combined fertilizer 10mmø...
Page 11 parts bag 1 parts bag 1 gas tank sand-packs gas tank sand-packs LUBRICANT 110mm (4”) lip seal rubber ring pipe/tubing joint lubricant 120mm lip seal rubber ring pipe/tubing joint lubricant (1 spare) parts bag 2 parts bag 2 20mm (3/4”) gas tube screw connector & fitting 20mmø...
Page 12 HomeBiogas logo is located at the HomeBiogas logo is located at the FRONT end of the system FRONT end of the system front back back front (gas, fertilizer out) (input sink, waste in) (gas, fertilizer out) (input sink, waste in)
Page 13 LUBRICANT parts bag parts bag (lubricant) LUBRICANT (lubricant)
Page 14 Improper installation of inlet pipe & combined outlet in the HomeBiogas system can damage the digester’s inner liner, causing a leaking digester tank Improper installation of inlet pipe & combined outlet in the HomeBiogas system can damage the digester’s inner liner, causing a leaking digester tank when filled with water.
Page 15 LUBRICANT parts bag parts bag (lubricant) LUBRICANT (lubricant)
Page 16 Inlet sink orientation: Inlet sink orientation: long cord long cord towards front towards front short cord & plunger short cord & plunger slot towards back slot towards back...
Page 17 back front Before filling the digester, make sure it is back front Before ﬁlling the digester, make sure it is (gas, fertilizer out) (gas, fertilizer out) (input sink, waste in) (input sink, waste in) in a suitable location, chosen according to in a suitable location, chosen according the site selection criteria in page 7-8.
Page 18 * pipes must point inwards when filling * pipes must point inwards when ﬁlling * rest hose on digester & enter inlet pipe from opposite side * rest hose on digester & enter inlet pipe from opposite side * if not using tap water: pH must be between 6.5 and 8.5 * if not using tap water: pH must be between 6.5 and 8.5...
Page 19 ﬁlled digester for leaks. contact HomeBiogas if contact HomeBiogas if any leaks are seen. any leaks are seen.
Page 20 LUBRICANT (lubricant)
Page 21 90°...
Page 22 sand-bags sand bags use dry sand only use dry sand only...
Page 24 remove 2 protective stickers remove 2 protective stickers from cover & around the base from cover & around the base of gas filter of gas ﬁlter...
Page 25 soften gas pipe in hot water for easy insertion of connectors for all gas pipe ﬁttings: soften pipe in hot water for easy insertion (212 °F) parts bag parts bag (0.8”) marking on gas tank outlet marking on gas tank outlet pipe must be facing upwards pipe must be facing upwards...
Page 26 gas pipe installation gas pipe installation Installation Criteria & Guidelines Installation Criteria & Guidelines 5. All gas pipes should be stretched out/straightened along their All gas pipes should be stretched out/straightened along their routes. 1. The length of gas pipe from the main valve to the stove can be up to The length of gas pipe from the main valve to the stove can be up to routes.
Page 27 Installation Options Installation Options Choose the installation method most suited to your system’s location and surroundings. A combination of the different methods is possible as long as all Choose the installation method most suited to your system’s location and surroundings. A combination of the diﬀerent methods is possible as long as all the guidelines on page 26 are met.
Page 28 for all gas pipe fittings: soften pipe tip in hot water for for all gas pipe ﬁttings: soften pipe tip in hot water for easy insertion easy insertion parts bag parts bag 100 °C (212 °F) (0.8”) purchase purchase 10mm 10mm (3/8”) for indoors usage, connect an additional...
Page 29 drainage kit drainage kit prepare prepare suitable bucket/container suitable bucket/container (create holes in side + bottom) (create holes in side + bottom) install drainage outlet at lowest install drainage outlet at lowest condensed water vapor may collect in the condensed water vapor may collect in the point along 20mm gas tubing! point along 20mm (3/4”) gas tubing! gas pipe over time as the stove is used, and...
Page 30 Please check your system with the following list and confirm that each item has been completed. Please check your system with the following list and conﬁrm that each item has been completed. This will ensure your system functions smoothly and prevent potential system damage. This will ensure your system functions smoothly and prevent potential system damage.
Page 31 Digester is placed on strong, flat, level surface (refer Digester is placed in sunny location near kitchen, away page 7-8) from windows/sitting areas (refer page 7-8) Digester filled until water flows from fertilizer outlet Marking on Gas Tank Outlet pipe is facing upwards Combined outlet is aligned 90°...
Page 32 activating the system Wait a day after assembly and verify there are no leaks before starting activation. Activate the system in warm weather. (average day/night temperature at least 25 °C (77 °F) for the first 4 weeks). To activate, you will need: 300 liters (80 gallons) of animal manure from herbivores, fresh (wet and up to 2 days old) & clean as possible from straw/stones/earth.
Page 33 open The gas produced at first may contain a high level of CO 2 and will not ignite easily If the flame is not steady or the gas does not ignite, emp- ty the gas tank by unscrewing the Gas Valve Connector until the gas tank has completely deflated.
Page 34 daily operation how to feed the system: part part part part part parts part parts Kitchen Waste: Animal Manure: Pour the kitchen waste/manure slurry into the sink Turn the plunger 180°, then lift and gradually to prevent splashing. Mix manure well with rest the plunger on the plunger Fill a container with twice the amount of...
Page 35 Push the overflow clearing rod through the Push the plunger all the way down the inlet fertilizer overflow channel a few times to keep pipe, then make sure to turn plunger 180° the opening clear from undigested solids. For to “lock” it in place and properly seal sink. manure-only systems, you may remove the overflow/fertilizer outlet cover.
Page 36 what to feed the system: Kitchen Waste Animal Manure up to 43 liters/43 kg (11.4gal/95lbs) per day up to 18 liters/6kg (4.8gal /13.2lbs) per day (43 liters manure + 86 liters water = 129 liters slurry) Food scraps like rice, cheese, vegetable & fruit peels/pulp, meat, bones, Animal waste, as clean as possible from stones, straw and earth.
Page 37 Cold Weather Operation 0°C < 20°C (68F) The fertilizer produced by the HomeBiogas system may be Gas production will slow down when the system’s average safely used on your vegetable patch, flower beds or fruit trees surrounding temperature drops below 20 °C (68F). Feeding the etc.
Page 38 system care frequent care Make sure that the digester tank is completely Empty the condensed water accumulated in filled with water. the gas pipes. Drainage valve: Main valve: Drainage valve: Main valve: Open valve > Drain water Close valve > Unscrew connector Open valve - Drain water - Close valve - Unscrew connector - >...
Page 39 Agitate the digester tank around the inlet sink area Once weekly, agitate or ‘massage’ the top part of the digester tank, all around the front (inlet sink) side of the digester. The agitation process improves digestion efficiency and helps move solids towards the back of the tank.
Page 40 * System components are rated for 10-year lifespan. After 10 years check materials and contact HomeBiogas for replacement parts if required. Replacing the Gas Filter When gas burns with unpleasant odor Contact the company or your distributor for a new filter.
Page 41 (see page 39 for details on pH checking). tube. Blowing through the tube or using an electric air pump to Contact HomeBiogas for assistance. pass air through the tube will help to clear out collected water. iii. Close drainage connector and reopen gas valve.
Page 42 If the system still produces non-flammable gas after carrying out the chlorine tablet installed. previous steps, please contact us at support@homebiogas.com. If the system’s pH is lower than 6.5, add fresh manure to the system and mix well with plunger, according to the pH level measured: (prepare suitable containers/piping to drain away the digester liquid which will flow out when adding the manure.)
Page 43 If the rubber seal is fine, your filter should be replaced. Contact Homebiogas or your local distributor for a replacement. 3. Fertilizer smells bad. It is normal for the system’s liquid to have a mild fermenting/’organic’...
Page 44 HBG 7.0 household biogas system technical specifications: System volume 6.5m 230ft Dimensions Assembled (L x W x H) 400 x 180 x 150cm 13 x 6 x 5 ft Weight Assembled (approx.) 4600 kg 10140 lbs Gas pipe max length...
Page 45 The fertilizer is essentially the discharge from the digester tank. This discharge, the result of a long digestion process, is packed with various microbes, biostimulates, and organic nu- trients in the right form for rapid absorption by plants. The presence of both macro & micronutrients makes HomeBiogas fertilizer a good choice for most gardening and small-scale agricultural purposes.
Page 46 Customer and for a warranty period of twenty four (24) months from the date of delivery to Customer (the ”Warranty Period”) shall be free from defects in workmanship and materials. During the Warranty Period, HomeBiogas shall repair or replace at its option and expense any part which fails to comply with the Warranty specified above in Sections 1.1 Shipment of the re- placement parts to Customer’s original destination shall be at the expense of the Customer.

HOMEBIOGAS HBG 7.0 Owner's Manual

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