Biological treatment technology of pig waste

The traditional method of processing pig waste can be roughly divided into two categories: dry shovel treatment and mixed treatment. Both methods have serious and difficult problems to solve: traditional dry manure compost takes several months, covers an extensive area and emits unpleasant odors. Attracting flies and polluting the environment can cause serious food poisoning. In order to promote the sustainable development of the pig industry, we have studied two systems for processing pig farm waste.

Improved wooden trampoline

The pig-raising situation in Japan and Europe is similar to that in Hong Kong. Pig farms are close to residential areas and wastes need to be treated effectively. Therefore, environmental protection regulations are more stringent. Local use of sawdust plus active bacteria, placed on the floor of the pig house, waste decomposition and discharge in situ, known as "wood sugar bed pig raising law", in order to maintain the normal operation of active bacteria species, in particular the decomposition process of waste nitrogen, The primary task is to maintain a proper ventilation rate for the wooden boring mill. Therefore, it is necessary to turn the rake on a regular basis, which significantly increases the workload. The Hong Kong Government’s Agriculture and Fisheries Department and the Taiwan authorities have directly introduced Japanese methods and strains, but the test Not successful.

The government’s Agriculture and Fisheries Department and us have jointly researched and developed the “modified wooden ramming pig raising method” adapted to the hot weather in Hong Kong. Experiments have proved that the secret of maintaining the wooden worm bed bacteria to effectively ferment and decompose waste is that it is not necessary to add exotic strains. The wooden boring machine is dry, and allows the protein and nucleic acid to complete the amination process without entering or completing the nitridation process. The original strain of the wood boring bed can properly handle the oxidation of sulfides, and eventually can make most of the organic The waste is converted into colorless and odorless ammonium sulfate, while other exotic odor items such as sulfoxide and skatole are also oxidized to odorless sulfonium light salts.

Since the new wood lice contain very low organic nutrients that support bacterial growth, and the aminolysis of the ammoxidation process requires an adequate amount of ATP, the amination process proceeds slowly in the new hibiscus base and can only be completed in 3 or 4 days. Failed to enter nitridation. The data obtained from the experiments prove that our method effectively controls the progress of pig waste fermentation and achieves the expected results. The results of the test can be seen in the oxidation of the wooden crucible bed. The main organic nitrogen and sulphide are ammonium sulfates, and odor items such as plutonium and skatole are not accumulated on the wooden crib bed.

After the improvement, the wooden ramming bed has a good operation for the pig waste and the cost is reduced. The only point that is not perfect is that the density of the bred pigs is limited, and the maximum density cannot exceed a growing pig per square meter. Farms that intend to keep pigs at more than this density do not apply.

Sewage treatment system

Traditional sewage treatment depends on dilution, sedimentation, filtration, and activated sludge treatment to reach the goal of nitridation, coupled with anaerobic fermentation and other procedures to denitrate nitrate and convert it to nitrogen. For the treatment of heavily polluted wastewater such as pig farm wastewater, The traditional methods have limited effectiveness and can not control the distribution of odors, but also can not meet the requirements of environmental indicators for drainage. We and Beijing Liulin Biotechnology Co., Ltd. jointly develop a new generation of yeasts, which greatly increase the stimulation of high-frequency microwave electromagnetic fields. The acid that can break down the function of wastes, we have now completed field tests on sewage treatment plant technology and the elimination of odor from septic tanks, and have achieved remarkable results in terms of effectiveness and cost efficiency. The system for pig farm wastewater discharge, Data collection is currently underway and it is designed for use in pig farms of different sizes. For farms that currently use wooden ramming beds, this yeast agent also greatly enhances the function of controlling odor emission.

Chemical Materials

Chemical Materials,Sodium Benzoate,Sodium Diacetate,Potassium Sorbate

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