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River water quality evaluation method based on phytoplankton-integrity index (P-IBI)

An integrity index and phytoplankton technology, which is applied in the field of river water quality evaluation based on phytoplankton integrity index, can solve the problems of unfavorable P-IBI widely used, incomparability of evaluation work, and impact on evaluation results, etc., to save chemical reagents Use, reduce pollutant emissions, reduce the effect of testing costs

Active Publication Date: 2018-09-21
NANJING INST OF GEOGRAPHY & LIMNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are few studies on the integrity index of phytoplankton, and according to the existing research, there are many parameters that affect the integrity index and affect each other. Which parameters or combinations of parameters have a more significant impact on the integrity index, there is no conclusion
Different parameter combinations will inevitably affect the evaluation results, resulting in incomparability of evaluation work, which is not conducive to the wide application of P-IBI
In addition, some parameters in existing studies are very time-consuming to measure

Method used

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  • River water quality evaluation method based on phytoplankton-integrity index (P-IBI)
  • River water quality evaluation method based on phytoplankton-integrity index (P-IBI)
  • River water quality evaluation method based on phytoplankton-integrity index (P-IBI)

Examples

Experimental program
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Effect test

Embodiment 1

[0031] Adopt the present invention to carry out Taihu Lake Basin river water quality evaluation, comprise the steps:

[0032] (1) Determination of phytoplankton density, chlorophyll a concentration and Odum index of rivers in the Taihu Lake Basin;

[0033] From 2014 to 2016, field sampling was carried out in 4 seasons in 6 major water systems in the Taihu Lake Basin (Taoxi, Nanhe, Taoge, Yanjiang, Huangpu, Yangtze Estuary and Hangzhou Bay) (Table 1), involving 96 sampling points and 39 major rivers ( Dongtiao River, Xitiao River, Changxing Port, Nanhe River, Wuxi River, Huaxi River, Nanxi River, Meng River, Chengdong Port, Danjin Licao River, Beijing-Hangzhou Grand Canal, Beijing-Hangzhou Ancient Canal, Biandan River, Wuyi Canal, Wujin Port, Mengjin River, Xingou River, Xibei Canal, Baiqu Port, Huguang River, Luzhi Port, Miaojing River, Wusong River, Huangpu River, Taipu River, Desheng River, Xicheng Canal, Zhangjiagang, Wang Yu River, Changhu River, Yantietang, Liuhe, Chuany...

Embodiment 2

[0046] In this example, the water quality index WQI is constructed based on 15 environmental parameters, and the evaluation method in Example 1 is verified.

[0047] The specific operation steps are as follows:

[0048] (1) Measure the water body temperature (T), pH, conductivity (cond), turbidity and dissolved oxygen concentration with a portable multi-parameter water quality rapid tester (such as HydrolabDatasond 5) on site, and collect water samples back to the laboratory for determination of total nitrogen ( TN), ammonia nitrogen, nitrate, nitrite (NO 2 -N), total phosphorus (TP), permanganate index, calcium ion (Ca), magnesium ion (Mg), chloride ion (Cl), sulfate ion (SO 4 )concentration.

[0049] (2) Determination of total nitrogen, ammoniacal nitrogen, nitrate, nitrite, total phosphorus, permanganate index, calcium ion, magnesium ion, chloride ion, sulfate ion concentration: the raw water sample was passed through alkaline Potassium sulfate digestion, use molybdenum ...

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Abstract

The invention discloses a river water quality evaluation method based on a phytoplankton-integrity index (P-IBI). The method is used for evaluating and classifying river water quality based on the phytoplankton-integrity index. The invention finds that the P-IBI consisting of total phytoplankton density (N), chlorophyll a (Chl a) and an Odum index can effectively distinguish the difference of mainenvironmental factors in different water quality categories and is significantly positively correlated with a water quality index (WQI) which is originally calculated by measurement of many parameters, so that the P-IBI index consisting of the total phytoplankton density, the chlorophyll a and the Odum index can be adopted to realize rapid evaluation and classification of the river water quality.The method disclosed by the invention is simple and easy to operate, low in cost and easy to popularize and has very obvious advantages.

Description

technical field [0001] The invention relates to the field of environmental science and monitoring technology, in particular to a river water quality evaluation method based on phytoplankton integrity index. Background technique [0002] Due to natural processes, human activities, and increased use of water resources, the decline in water environment quality has become the most important environmental pollution problem facing the world today, which has attracted widespread attention from scientists and management departments at home and abroad. The World Health Organization research shows that in 2015, the drinking water safety of about 2 billion people in the world cannot be guaranteed. my country's water resources are seriously lacking, and the problem of water pollution is also very prominent. In 2016, among the 1,617 national examination sections of the seven major river basins including the Yangtze River, the Yellow River, the Pearl River, the Songhua River, the Huaihe ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/18
CPCG01N33/186
Inventor 吴召仕王昌辉
Owner NANJING INST OF GEOGRAPHY & LIMNOLOGY
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