Research of fluidized bed incineration technology for paper mill sludge;

The thermal-reaction between paper mill sludge and adhesive;

Research on modifying the lignin water-reducer extracted from paper mill sludge;

The study of earthworm biological treatment on paper sludge

With the development of paper making industry, the environment concerns about paper sludge have increased.

The sludges can bedivided into several categories: The primary sludge coming from the productionof virginwood fiber; The de-inking paper sludge produced by removing inksfrom post-consumer fiber; The secondary sludge (activated sludge) from thesecondary treatment systems sludge; And the combined paper sludge which ismixed the primary sludge with the secondary sludge.

Effects of monosodium glutamate wastewater on aerobic composting of pulp and paper mill sludges;

A thermophilic actinomycete strain AO-Ⅲ was isolated from the composting process of pulp and paper mill sludge at the thermophilic stage.

The feasibility of aerobic vessel composting of pulp and paper mill sludges was studied.

The garden soil containing pulp and paper mill sludge compost (every kg garden soil mixes 250g sludge compost) was used to investigate the accumulation behavior of heavy metals in crops and soil in basin experiment.

The aim of this study was to find the release behavior of active aluminum in red soil added with paper mill sludge compost(PSC) by simulating cultivating experiment.

The paper concerned on the influence on red soil when paper mill sludge compost (PMSC)was used in a pot maize experiment.

Several research projects about utilization of pulp and paper industrial sludges were recounted to promote the research and development of sludge utilization and pollution control.