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With the economic development of our country towns, the degree of life of farmers has improved, and the discharge of sewage in their rural areas has continued to increase. However, the rural residents have been evacuated and there is no perfect sewage collection system. For a long time, there has been a lack of useful management methods. The sewage is directly discharged into the nearby canals and fish ponds, which directly leads to the deterioration of the water environment in the rural area and its surrounding areas. While the heads of various bureaus have added investment in urban sewage treatment, they have also shifted their attention to rural areas, adding investment in rural sewage treatment. They have failed to cover areas and urban sewage pipe networks to build agricultural sewage treatment systems. This article analyzes the present and characteristics of our rural sewage treatment system, combines actual experience, and Sugar daddy in order to provide reference for the construction of rural sewage treatment in our rural sewage treatment.
1. Characteristics of rural sewage
1.1 The collection system of rural sewage drainage current pipe network is imperfect, and it is a concentrated discharge, sewage evacuation discharge and small flow. With the increase in agricultural industrial development and growth in some urban attachments in recent years, a large number of untreated sewage is directly discharged through imperfect sewage pipe networks such as open channels, crypts and natural canals in each village, directly into nearby ponds, depressions, and male actors of similar ages. The other three are middle-aged men. Rural fields, irrigation canals or sanitary canals are eventually received by the soil or discharged into the large rivers and rivers. The discharge of sewage has not been processed, making it a regular visitor to the rural village. The water quality of canals and pools becomes black and odorous, and the reproduction of mosquitoes affects the living environment of the farmers and threatens the health of farmers. At the same time, rural sewage has formed a purification of drinking water sources, and the phenomenon of rich nutrition in lakes and water tanks has become increasingly prominent.
1.2 The Sugar baby is composed of rural sewage: gray water and black water, which belongs to low-concentration sewage types. It mainly includes washing, bathing and kitchen water, as well as human, animal urine and poultry breeding wastewater. The important sources of rural sewage are divided on the side by side due to economic differences in various regions. The urbanization level of the departmental rural areas is relatively high. In addition to the life sewage, its sewage also includes sewage discharged by industrial enterprises and catering sewage. The sewage discharged by rural villages mainly based on traditional cultivation is important for the life sewage, agricultural sewage, and animal husbandry sewage.
1.3Characteristics of village sewage discharge The discharge of rural sewage is particularly closely related to local agricultural methods and daily routines. Its emission rules are intermittent, with ordinary emissions ranging from 12:00 to 2:00 am and 5:00 am to 7:00 am, which shows an upward trend from morning to morning, and emissions continue to fall at night.
2. Commonly used sewage in rural areasSugar baby treatment technology and consequences
In today, some areas in China have built evacuated agricultural sewage treatment systems for villages that are remote or municipal sewage pipe networks, and guide sewage in these villages to various treatment stations through the pipeline network to solve local sewage wastewater. daddyProcessing the problem. According to actual conditions, these treatment stations adopt a combination of oxygen hydrolysis, artificial moisture, contact oxidation, stable ponds and other divergent treatment processes. After sewage is treated, it can meet the first B standard of the “Purification Emission Standard of Urban Sewage Treatment Factory” or the agricultural water injection standard, which is suitable for design requests.
2.1 Oxygen hydrolysis tank + artificial moisture-related artificial moisture-related types can be divided into two categories: general current and diversion. The important methods of diversion moisture-related treatment are vertical current and degree flow. The artificial wet ground technology combines the general flow, degree flow and vertical flow to form a combined wet ground bed to treat sewage. The important problem of oxygen biotreatment is that the removal of floating substances, ammonia nitrogen and phosphorus is worse. The disadvantage of artificial moisture is that the water inlet is higher, and there must be pre-treatment of large particles in the sewage to prevent infarction of moisture filters. Artificial moisture treatment system can effectively remove COD and BOD of sewage, and at the same time remove ammonia nitrogen and phosphorus through aquatic plant reception, nitration and denitrification of microorganisms, nitrogen generation, etc., as well as artificial soil phosphorus solidification and plant root reception methods. Through “Tomorrow, someone will take it for inspection, and then we will issue a letter in the community to adjust the filler particles to filter out the water. These two techniques will take the short-term and short-term Song WeiManila escort to complete the filling particles.//philippines-sugar.net/”>Escort manila knocked on the desktop: “Hello.” Organically, it was combined with Sugar daddyThe consequences of handling were very good.
In comparison, the operation price of this process is lower, easy to maintain, and can absorb the impact of hydraulic and purifying loads; but the operating volume in the occupied space is relatively large and susceptible to the damage caused by the season. href=”https://philippines-sugar.net/”>Pinay escort is clearly visible. Based on the analysis of the finished sampling, the effluent water quality using oxygen hydrolysis tank + artificial moisture-refined ground can reach the first-level B standard of the “City Town Sewage Treatment Factory Purification Emission Standard”.
2.2。Escort manilaAxygenic form The process is used in oxygen and fetal oxygen microbial water in oxygen tanks. The long-link organic substances are initially differentiated into short-link organic substances to produce biological enzymes; the gas is exposed in the contact oxidation tank, and the growth of aerobic organisms is used to degrade organic compounds in water. AO labor and arts are high, have a small amount of time, and have few buildings to handle. They can be treated in underground treatment. Maintenance can be carried out using fully automatic methods, but more maintenance management and operation prices are required. Testing and analysis can achieve the first-level BPinay escort standard.
2.3 Biofilter tank method Wastewater collection, and after passing through the grid tank and the regulating tank, the sewage is directed to the high-demand biological filter tank for treatment, and then precipitated and discharged. When fillers are loaded in high-demand biofilter tanks, the wastewater flows through the filler overview, floating matter is intercepted, the glue material is adsorbed, and the microorganisms in the wastewater grow and reproduce with this as a nourishing material. These microorganisms further adsorb floating matter, glue and ablation conditions, and gradually form biofilms with biochemical activity under appropriate conditions. Due to the proliferation of microorganisms and the adsorption of biofilms on floating objects, the biofilms gradually thicken. Due to the ease of receiving nutrients and ablation, the microorganisms grow quickly, forming an aerobic layer composed of aerobic and facultative microorganisms. In the biofilm, since oxygen cannot enter, it forms an oxygen layer composed of oxygen and facultative microorganisms. With the thickening of the biofilm, facultative microorganisms close to the filler profile cannot obtain nutrients. They grow into endogenous long-term Escort manila. The biofilm is aging and falls under a hydraulic brush and new biofilms grow from the head.
The process has a small amount of space, simple operation, and relatively stable processing. It can be used to remove COD and BOD in water, and has certain treatment consequences for total nitrogen, ammonia nitrogen and total phosphorus, but it requires certain operation prices, and the system will not be difficult to produce filler infarction after operating for a longer period of time, and needs to be replaced in time.
2.4 Oxygen hydrolysis + Ecologic + Stable Tang Treatment Industry The industry uses Oxygen hydrolysis and acidification to conduct preliminary differentiation of organic matter and then enter the ecological environment, and applies the growth of aquatic plants, receive nitrogen and phosphorus, and reduce the organic matter content. The ecological water flows out of water into the oxidation pond, and through natural oxygenation, oxidative differentiation and aquatic organisms, it further reduces organic matter in the water. Due to the overall poor hygiene conditions in rural areas, some areas are even hotter and rainy, so emergency disinfection pools are set up at the end of the treatment facilities according to the needs. The TC:
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