This paper reviewed the researches on the concentration and distribution,the photochemical properties of Fe()oxalate complexes,their effects on the photodegradation of organic compounds in the natural aqueous phase including atmospheric aqueous phase,surface waters and so on.

A method for evaluating sealing ability of over-pressured mudstone caprock for gas in water-dissolving phase;

The influence of typical posion in natural water to Fenton;

Preconcentration with surfactant-coated alumina column and determination of trace amounts of copper, iron and lead in natural water by FAAS;

Determination of Calcium and Magnesium in Natural Water by Flow Injection Analysis Inductively Coupled Plasma Atomic Emission Spectrometry;

Two samples of a set of national standard water samples which have natural level ratio of D and H are set as standards and the other two as unknown samples,a linear calibration method with equal H2+ is studied on GAM400 quadrupole mass spectrometer.

The ecological fibre is a new water treatment material that is processed by simulating the shape of wild water plant.

Study on the fuzzy synthetic evaluation for natural water quality;

The relationship between the purification and distribution of Fe and Oxalate in natural water;

This paper is inclined to present the results of our natural water degradation simulated experiments so as to gain a better under- standing over the behavior of the photooxidation degradation of aniline in a photochemical reactor designed by ourselves.