Control technology for tubificidae in tap water

Abstract

The invention relates to a control technology for tubificidae in tap water which comprises, at 20 deg. C, eradiating adult earthworms in tap water with various disinfectants, when the disinfectant is sodium hypochlorite, controlling the throwing amount to be sustaining residual chlorine number 1.5mg / L for over two hrs, of the initial residual chlorine number over 3.5mg / L, or when the disinfectant is hydrogen dioxide solution, controlling the mass ratio of hydrogen peroxide to be 0.01% for around 2 hrs, or when the disinfectant is chlorine dioxide, controlling the thrown amount to be starting calculation concentration of 8mg / L for 2 hrs.

Description

technical field [0001] The invention relates to the cleaning control technology of tap water. Background technique [0002] More than 70% of urban water sources in northern my country are surface water, which is seriously polluted by organic matter, eutrophication of water bodies is common, algae blooms in large numbers, and various small aquatic animals breed, including zooplankton and "red fleas" that people are used to call "daphnia". Insects" benthic animals. These organisms are commonly found in water sources and secondary storage tanks, and sometimes even appear in taps at the user's end. This situation is not allowed in any country's drinking water standards. [0003] At present, for the chironomus larvae that appear in tap water, the water affairs bureaus and tap water companies in Shenzhen and other places in my country have carried out research on control measures and have achieved certain results. However, there is no effective control research for water earthwor...

AI Technical Summary

Problems solved by technology

However, it is difficult to survive under artificial culture conditions, and it is more difficult to study

Therefore, it has a very large adverse effect on further biological research.

[0007] 2. There are irregularities in tap water

[0008] The appearance of water earthworms is random in time and space, and the exact time range and space range of water earthworms cannot be determined, so they can only be studied passively after they appear.

[0009] 3. The growth stage of this species is complex and difficult to handle

And it has a certain relationship with the treatment process, it is difficult to obtain a unified control method

[0011] 4. The existing disinfection process of the waterworks cannot kill water worms

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