Jieyang City of secondary factors of water quality -

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Jieyang City of secondary factors of water quality

Frame rate comparison,[link widoczny dla zalogowanych], the difference was significant (= 1, = 12.386, P <0.01), Table 1. Table 120O0 ~ 2002 年 water quality monitoring in Jieyang City, the situation of secondary color sample turbidity sample PH value of the visible matter of free residual chlorine of arsenic sources of lead the number of coliform bacteria in the number of total number of qualified (%) Number of qualified (%) Number of qualified ( %) the number of qualified (%) Number of qualified (%) Number of qualified (%) Number of qualified (%) Number of qualified (%) Number of qualified (%) Number of qualified (%) on the ground 1oO1oO (1oO.0O) 99 (99.0O) 1oO (1oO.0O) 10O (10O.oO) 1oO (1oO.00) 10O (10O.oO) 1oO (10O.0O) 1oO (10O.0O) 98 (98.oO) 1oO (1oO.0O) G 8o80 (1oO.oO) 76 (95.0O) 8o (1oO.0O) 78 (97.50) 78 (97.5o) 79 (98.75) 8o (1oO.0O) 80 (1oO.oO) 75 (93 .75) 78 (97.5o) Total 18o180 (1oO.0O) 175 (~ .22) 18o (1oO.0O) 178 (~ .89) 178 (98.89) 179 (99.4.4) 18o ( 10O.oO) 18o (1oO.oO) 173 (% .11) 178 (~ .89) 3 to discuss the secondary water supply based on field investigation and test results of water samples can be seen, Jieyang City secondary water supply water quality better, secondary water supply pass rate of 96.11%. But the seized items in the total bacterial count exceeded the more that the water quality of secondary water supply has been contaminated, causing secondary contamination of water quality factors can be summarized as follows. 3.1 The layout and structure of the reservoir does not meet the health requirements of central water supply unit within 30m outside the production area to maintain good health, the city underground reservoir-type generally set in a residential area after the ground floor front of the building or its most have septic tanks around, Wu Shuigou, seepage pits and other sources. Some of these sources from the ground-based tanks the recent lack of 3m, and these septic tanks, Wu Shuigou often only with bricks, is neither approved nor blocked the end of irrigation, contamination by infiltration. Secondary water supply reservoir of the city are reinforced concrete structures. Investigation found that some type of underground reservoir tanks, as sealed, no vent and discharge pipes, and drain cleaning and disinfecting hard, easy to produce stagnant water. Different from the above results show that the reservoir water, underground water reservoirs are vulnerable to contamination type. 3.2 Health reservoir mismanagement Jieyang City is a new urban, secondary water reservoir is also more confusing health management, especially in some ordinary hotels and residential areas is even more worrying. Investigation found that some property management companies in order to reduce expenditure, by the security personnel act as a water supply work, a swimming pool lifeguard, a several roles, and lack of professional knowledge. Reservoir does not run by professionals, not stamped lock, spillway and exhaust ports do not set nets dust flies, and some for a long time without cleaning, pool with debris, scale deposition, the wall with moss and so on. 3.3 The proposed secondary water supply to improve the sanitary quality of water, secondary water supply is necessary to establish local health regulations, and supervision departments should strengthen supervision of secondary water supply units, on the second water supply unit to strengthen health management, to establish the necessary The health management system, including health incident reporting system, health system, health permit system, etc.; the health sector must participate in the design review of the secondary water supply facilities, water quality testing and final acceptance, after passing the order in use; the implementation of the secondary water supply storage pool of staff management, water management of secondary health examination once a year and health knowledge training, qualified before induction; to do regular maintenance and management of secondary water supply facilities in each of 1-2 periodic cleaning and disinfection, and records archive; regular sampling and testing water quality of secondary water supply, timely detection and elimination of pollution problems; strengthen the quality of secondary water purification and disinfection of re-administration, in order to further ensure that the secondary water supply into the ~ health and drinking water safety.

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