Organic/Kitchen waste is perishable organic waste such as fruits and vegetables, food, leftovers, melon and fruit peels discarded in daily life. Due to the incomplete classification of residents, it often contains impurities such as plastic bottles, plastic bags, glass, metal, wood blocks, and bricks. Before the harmless treatment of kitchen waste, these impurities must be removed in order to achieve harmless treatment and resource utilization. However, the construction of organic waste disposal facilities is lagging behind or the scale is small, resulting in insufficient front-end sorting power of domestic waste in many cities in China, and the effect of domestic waste sorting is greatly reduced.
However, Luculent Environment has independently developed LHP ultra-high pressure separation technology and equipment that can “eat coarse grains” in view of the above-mentioned characteristics of kitchen waste treatment and the difficulty of classification. After the collected kitchen waste is bagged, it is extruded by an ultra-high pressure machine with a pressure of 280 to 350 atmospheres in the cavity of the device, and the organic matter and moisture in the kitchen waste are separated from the waste in the form of slurry.
The organic matter extraction rate is high, which can achieve 85% reduction in kitchen waste; the separated wet waste is transported to the anaerobic fermentation system, and converted into biogas after anaerobic fermentation; the dry component with high calorific value after extrusion is used as an alternative fuel .
The biomass comprehensive treatment plant of Guangzhou Solid Resource Regeneration Center built and operated by Luculent Environment mainly uses LHP ultra-high pressure separation technology and equipment. To achieve reduction and resource utilization of organic waste generated in the six districts of downtown Guangzhou, so as to squeeze and dehydrate the massive organic waste first, and then “eat it dry and squeeze it out”.
The organic matter extraction rate is high, which can achieve 85% reduction in kitchen waste. The separated wet waste is transported to the anaerobic fermentation system, and converted into biogas after anaerobic fermentation; the dry component with high calorific value after extrusion is used as an alternative fuel , to maximize the utilization of material resources. The biomass comprehensive treatment plant of Guangzhou Eastern Solid Resource Regeneration Center built and operated by Luculent Environment mainly uses LHP ultra-high pressure separation technology and equipment. To achieve reduction and resource utilization of kitchen waste generated in the six districts of downtown Guangzhou, so as to squeeze and dehydrate the massive kitchen waste first, and then “eat it dry and squeeze it out”.
Construction and operation of the largest organic waste disposal project
The eastern biomass comprehensive treatment plant of Guangzhou Solid Resource Recycling Center adopts the LHP ultra-high pressure separation technology independently developed by Luculent Environment, which can handle both well-sorted kitchen waste and unsatisfactory kitchen waste. It can be applied to the treatment of kitchen waste, expired food, fruit and vegetable waste, etc.; and the specially designed pressing chamber can handle organic waste with high solid content; no manual sorting of kitchen waste is required; and It has the advantages of high operating stability, low equipment failure rate, and continuous and stable operation.
This organic waste disposal processes nearly 1 million tons of organic waste per year. It is the world’s largest comprehensive urban organic waste treatment project and the world’s largest waste sorting back-end treatment facility.
Due to the adoption of the country’s leading LHP ultra-high pressure separation technology, LCJ super anaerobic microorganism and other technologies, the project has been put into operation in less than one year since it was put into operation in July 2019. The actual processing capacity of kitchen waste exceeds the designed capacity. The processing scale is more than double (the actual daily processing scale is more than 1,200 tons), setting the fastest record for the full production of similar comprehensive treatment projects and kitchen waste treatment projects.
According to the characteristics of the four types of organic waste, the project generally adopts the “pretreatment + combined anaerobic digestion + comprehensive utilization” treatment process, which mainly treats the pretreated slurry of catering waste, kitchen waste, dead livestock and urban manure. Combined anaerobic fermentation treatment. The project has the world’s largest anaerobic fermentation system, which can greatly speed up the processing efficiency of organic slurry. The four types of organic wastes are co-processed and finally turned waste into treasure and converted into clean energy products such as electricity, biogas and biodiesel. This organic waste disposal project generates about 100 million kWh of electricity every year, and uses waste edible oil to produce about 150,000 tons of biodiesel.
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