The mainstream solutions adapted to high-turbidity yellow mud well water on the market all use combined well water filtration equipment with multi-stage gradient interception, completely avoiding the misunderstanding of single-stage filter element hardness: the first stage uses an automatic backwash coarse filter unit to directly intercept large particles of sediment and flocculent mud to avoid large impurities from impacting the back-end filter layer; the second stage is equipped with a thickened grade quartz sand filter, which deeply adsorbs colloidal yellow mud and suspended particulate matter, trapping more than 95% of turbidity pollutants at this level; for the extreme working conditions of skyrocketing turbidity in the rainy season, activated carbon or activated carbon can be additionally superimposed. The anthracite filter layer strengthens the interception effect, and finally uses a 1-5µm precision filter element to do terminal security checks.The entire system is equipped with fully automatic timing backwash logic, which regularly reverse scours the silted yellow mud impurities in the filter layer, without frequent manual disassembly and cleaning, the filter element replacement cycle is directly extended several times, and the cost of consumables is greatly reduced.
Well water filtration equipment
A large-scale aquaculture base in Zhenyuan, Gansu, uses shallow well water, and the well water turns into thick yellow mud after every rainfall.In the early picture, only a single-stage 5µm PP precision filter element was installed to save trouble. The filter element was completely blocked from discharging water in 2-4 days. The cost of consumables in a single month was several hundred yuan. The water supply was intermittent, and the leaking mud completely covered the cationic resin of the back-end water softening equipment, which directly led to the failure of the softening system.DIEN's technical personnel stayed on site to track the fluctuation curve of water quality in the rainy season, and customized multi-stage yellow mud water treatment plans in a targeted manner: the front self-cleaning mesh filter first intercepts large-volume mud masses, and the middle section is equipped with a thickened quartz sand multi-media filter to deeply adsorb colloidal yellow mud, and finally configure the security filter element for terminal protection, set the wrong peak automatic backwash program, all yellow mud and suspended solids are trapped at the front end, reducing the impact load of the rear-end filter element from the root cause.
The equipment has been operating stably for 10 months. Even if the turbidity of the well water reaches its peak during the rainy season, the filter element will not be quickly blocked. The filter element replacement cycle is directly extended to 2-3 months. The removal rate of yellow mud and suspended solids is close to 100%, and the effluent is completely clear to the naked eye.The person in charge of the farm gave feedback: “I used to stare at changing the filter element every day, and the consumables often cut off the water to delay the breeding and feeding.This set of well water filtration equipment is automatically backwashed throughout the process, without frequent manual care, and directly reduces the workload of daily operation and maintenance by 80%.”
The core root cause of frequent blocking of the filter element in well water is that the colloidal yellow mud has not been separated at the front end. The precision filter element can only assume the role of the final check, and it is directly used to carry the high turbidity yellow mud water, and the later operation and maintenance costs will only get higher and higher.As a local source manufacturer in Northwest China, Xi'an DIEN Water Treatment can take water from door-to-door to detect fluctuations in well water turbidity at different times, customize and adapt well water filtration equipment as needed, and issue a complete yellow mud water treatment landing plan to help users avoid blind procurement pits and avoid unnecessary cost waste.
