With regard to pig breeding, chicken and duck farming, aquaculture and other related pollution incidents, in the environmental protection ecosystem, the once neglected aquaculture pollution problem has begun to receive more and more attention. Industry insiders said that the pollution of the aquaculture industry may become The 'tipping point' of environmental protection issues, following water pollution, air pollution, solid waste pollution, a large number of aquaculture pollution is becoming a new challenge facing the industry.
Large-scale remediation of livestock and poultry breeding, ectopic fermentation technology and equipment to achieve reasonable emissions
In order to further promote the management of manure and waste and the utilization of waste resources in livestock and poultry breeding, many localities have focused on the pollution control of livestock and poultry breeding, such as Southern County, Jing'an County, Guangchang County, Pingdu County, Wudang District, Luojiang District, etc., do a good job in the construction of livestock and poultry farms (households) and the comprehensive improvement of the environment, to prevent or avoid breeding pollution, to achieve sustainable development of the aquaculture industry.
It is understood that the southern county of Nanchong City, Sichuan Province, has increased the promotion of new agricultural technologies, the comprehensive utilization of crop straws, and the pollution control of livestock and poultry breeding. Among them, the pollution of livestock and poultry breeding has been greatly rectified, and more than 140 large and medium-sized livestock and poultry scale farms have been upgraded and upgraded. Water-saving process facilities and manure collection, treatment and utilization of facilities and equipment, and the construction of a new livestock and poultry manure treatment center, etc. At present, the comprehensive utilization rate of livestock and poultry manure in the area is over 90%, and the scale farm waste treatment facilities Equipment matching rate reached 100%.
In addition, with the reduction of the number of free-range livestock and poultry in rural areas, the concentration, industrialization, scale and specialization of livestock and poultry farming require breeding pollution, and sewage treatment equipment must keep up with the development needs of industrialization. Causes pollution of the surrounding environment and forms agricultural non-point source pollution.
The author was informed that the amount of manure produced by the annual pigs in Guangchang County, Fuzhou City, Jiangxi Province reached more than 3,900 tons. The county actively promotes clean farming techniques and follows the two separations of existing livestock and poultry farms (dry and wet separation, rain pollution). Distributing the poultry), the three supporting (dry septic tanks, biogas digester, biogas slurry reprocessing tanks), meeting the requirements of emission standards, accelerating the treatment facilities, effectively realizing the 'resources, reduction, and disposal of aquaculture waste disposal, Harmless, ecological'.
As is known to all, under the national environmental protection pressure, the treatment of pollution in the aquaculture industry is imperative. On the one hand, the use of advanced treatment technology to reduce pollution, on the other hand through the establishment of aquaculture pollution treatment equipment and facilities to achieve waste recycling, such as pre-establishment The system, the anaerobic digestion system, the biogas transmission and distribution system, the organic fertilizer production system and the post-digestion treatment system, etc., use the manure of livestock and poultry to develop biogas, and realize the 'turning waste into treasure'.
It is reported that the pig farm in Guixi City of Jiangxi Province adopts the technology of treating the ectopic fermenting bed of manure, which is transferred into the bottom layer through the slatted floor and transferred to the outside, using the litter and microbial bacteria for fermentation decomposition, and will raise pigs and The fermentation bed fermentation is carried out separately at different sites, which greatly improves the success rate of manure treatment, effectively solves the traditional fermentation bed raising pigs, integrating the pig beds, the padding is not easy to maintain, the phenomenon of fermentation dead bed is frequent, and harmful gases and High temperature has an adverse effect on pig growth.
In addition, the Makino Group adopts a fully slatted floor water-free flushing process, which avoids water flushing the pig house during the whole feeding period, reduces the water consumption of the pig house, and continuously innovates and improves the drinking fountain, intelligent temperature control, spray cooling, no runoff, high pressure water gun cleaning. Brush circle, also to some extent reduce the production of aquaculture wastewater, reduce pollution sources.
With the increasing environmental protection pressure in the aquaculture industry, the sewage discharge is not up to standard, the pollution is serious, and the farmers who have been ordered to rectify are not rare. How to maximize the efficiency of aquaculture pollution treatment, reduce costs, and achieve 'less emissions, zero emissions' The problem that the industry needs to solve urgently. The author believes that the development and application of aquaculture pollution treatment technology and related facilities and equipment will achieve economic, ecological, energy and social benefits.