Exploration on opening experiment teaching of the treatment of waste liquid from chemical laboratory offering for normal college students;

Research on the recycle of waste liquid coming from the purification of acetylene and its application;

Study on extraction of 2-naphtol from waste liquid in pharmaceutical plants;

Study on citric acid fermenting conditions of waste liquor after Dioscorea zingiberensis extrcting diosgenin;

Discharging of waste liquor from chelating ion-exchange resin tower;

In the process of preparation of boracic acids by using one step method,the waste liquid and waste residue were generated;if they were discharged directly,it would destroy the environment seriously;so the recycle and utilization of the boracic acid waste liquor and residue were discussed.

Study on producing CuO from deposited-copper etching solution and recycling conditions of wastewater;

Analysis of biochemical methane potential in anaerobic biodegradation of molasses alcohol wastewater;

Treatment of Water Based Cutting Fluid Wastewater by Iron-Carbon Micro-electrolysis Method

Recovery of acetic acid from process of waste solution;

The chemical composition of the waste solution from which rhenium is I‘ecovel‘ed,procedures of recovering and some important points for applying the procedures are described.

In Japan,the organic components of waste solution of molasses al cohol were transformed into humic acid and further pro-duced into fertilizer co ntaining over50%organic substance.

Study and application of ion exchange membrane technique to the treatment of metallurgy liquid waste;

The full of liquid waste were reclaimed and no new sewage were produced during this process.

Technological procedure of chromium recycling from chromium liquid waste of electrodeposition is investigated.

The production of liquid protein condiment with the waste of silk noodles;

Research and Experiment of the Comprehensive Utilization of Alcohol Waste from Cane Molasses;

we described here the chemical waste hazard from laboratory of chemical and chemical engneering college and institue,and also introduced accordingly innoxiousness techniques to reduce harm to human and environment.