Jacobs Solutions has filed a patent for a method and system for drying wastewater solids. The method involves blending anaerobically digested and de-watered biosolid cake with previously biodried biosolid to form a mixed biomaterial pile. The pile is then shaped and aerated using forced air ventilation to create a biodried material. The system includes a mixing station and an aeration system. The resulting dried biomaterial can be used in agriculture or horticulture applications. GlobalData’s report on Jacobs Solutions gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on Jacobs Solutions, biochemical H2 synthesis was a key innovation area identified from patents. Jacobs Solutions's grant share as of June 2023 was 1%. Grant share is based on the ratio of number of grants to total number of patents.
The patent is filed for a system for biodrying wastewater solids
A recently filed patent (Publication Number: US20230202892A1) describes a system and method for biodrying wastewater solids. The system includes a first biological component consisting of anaerobically digested cake solids, a second biological component consisting of biodried solids, a mixing station, and an aeration system. The first and second biological components are combined to form a homogenous mixed biomaterial pile, which is then force ventilated to form a biodried material.
The first biological component in the system can be cake solids processed by thermal hydrolysis and anaerobically digested at mesophilic or thermophilic temperatures. It typically contains about 25% to 35% solid material and may involve a micro-hydrolysis process with hyper-thermophilic bacteria. The second biological component comprises at least a portion of the biodried material produced in the aeration system.
The mixing station in the system can include various equipment such as a windrow turner, rototiller, pug mill mixer, mix box, or front end loader mixing. The homogenous mixed biomaterial pile can have an initial mixture of 38% to 45% solid material and can be of varying dimensions, including a height between 1.5 meters and 4 meters, a width between 2 meters and 10 meters, and a length between 4 meters and 35 meters. It can also consist of a mass bed with adjacent piles.
The aeration system in the system includes a ventilation conduit connected to a pressurized air source and delivery conduits within the mixed biomaterial pile. These delivery conduits deliver air to the pile to promote an aerobic biological process and control internal pile temperatures. Additionally, a membrane cover can be used over the mixed biomaterial pile. The system may also include a temperature feedback control system to regulate pile temperatures and drying rate.
The method described in the patent involves blending anaerobically digested and de-watered biosolid cake with pre-dried biosolid to form a mixed biomaterial. This mixed biomaterial is shaped into a pile and then aerated by forced air ventilation to form a biodried material. The biodried material is then divided into a recycle biosolid and a dried biomaterial product. The method can also include a thermal hydrolysis process and maintaining thermophilic temperatures of 40°C or higher within the pile for at least 72 hours.
Overall, the patent presents a system and method for biodrying wastewater solids, which involves combining different biological components, aerating the mixed biomaterial pile, and controlling pile temperatures to achieve biodried material.
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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.
